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Home / Career Opportunities / Client Service Representative
Sorry, this job is no longer available.
The Client Services area is a team focused environment, demonstrating a desire to provide first in class service to all OMERS clients. The successful candidates will support the achievement of all Client Services objectives and act as a support to the Management team. In order to maintain a best in class level of service, calls are recorded and reviewed for training and quality assurance purposes. As part of the Client Services Team, the main focus of the Client Service Representative is to provide frontline support to members, employers, pensioners, and other interested parties on inquires regarding all aspects of the OMERS Pension Plans. The position is responsible for answering calls, responding to email communications and initiating transactions for pension administration related to current key initiatives such as AVC, buy-backs and inquires specific to myOMERS.
The key areas of responsibility are directly related to OMERS Core Competencies and are as follows:Technical Expertiseo Acquire a solid understanding of other department functions related to administration of the OMERS Pension Plan(s), in order to provide timely, accurate, and technical support to OMERS client groups.o Able to handle all types of calls from basic inquires to sensitive complex issues defusing situations where needed. Ability to clearly capture the key points of the call and respond to e-mail inquiries.o Handling of complex or sensitive calls in a professional manner and ensuring that issues are followed through to completion. Remain current on regulatory/policy changes relating to the OMERS Pension Plan(s), new OMERS initiatives and products as well as pension industry related trends. o Based on questions asked and feedback provided by the clients identify/recommend continuous improvement opportunities pertaining to process, communication materials (including employer newsletters, employer forms, and the Employer Administration Manual), and system enhancements.o Flexibility in being able to take on other duties as assigned.Team Worko Work co-operatively with peers by sharing information and communicating in an open, honest and professional manner, to ensure objectives are met.o Develop and maintain an effective working relationship internally with all areas including Pension Accounting, and externally with employers, members and 3rd party representatives.o Keep appropriate management team members informed by providing immediate feedback on sensitive client issues.o Uphold and demonstrate OMERS Vision and Core Values when dealing with both internal and external clients.Focus on Cliento Demonstrate excellent judgment and tact when dealing with clients, and ensure issues are investigated thoroughly when providing a response to a question or issue that has arisen.o Provide prompt, accurate information, in a courteous, professional manner to both internal and external clients.o Investigate contentious client issues, take appropriate action, and prepare incident reports in a timely manner, ensuring detailed analysis includes recommendation for resolution and being accountable through to completion.o As an ambassador of OMERS, maintain a professional rapport with others at all times.
o University Degree and/or College Diploma or Minimum of three (3) years experience working in the pension, financial, or a contact centre/customer service related industry.o Conceptual thinker with excellent oral communication skills and excellent writing skills.o Possess a positive attitude, customer service focus with a commitment to personal development and continuous learningo Aptitude for technology.o Excellent attention to detail, and ability to work under pressure to meet Client Services service levels.o Successful completion of Pension Plan Administration Certificate (PPAC) 1 and 2 and/or currently pursuing PPAC Certificate. o Ability to speak French fluently would be an asset.


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Cities in District 5
The district comprises portions of the City of Miami Beach , City of Miami and the unincorporated area of Fisher Island. This encompasses Downtown; parts of Brickell; Brickell Key; The Roads; Shenandoah; Little Havana; Grapeland; all of South Beach; parts of Mid and North Beach; Hibiscus, Palm, and Star Islands.Back to Top Page Last Edited: Wed Jul 20, 2011 11:59:35 AM
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subset: commoncrawl


text:
Manufacturer: Accutone Manufacturer: SUPRA 2 Results
SUPRA NiTRO
Driver - 9mm dynamic neodynamium magnet Frequency range - 16Hz-22KHz Impedance - 16 Ohm Sensitivity - 98Db @ 1KHz Distortion - <2% Connector - 3.5mm gold plated, silicone rubber, stereo Cable - 1.2m TPE insulated and Kevlar reinforced Microphone - Proprietary digital MEMS technology http://www.soundbysweden.se/inear.html
Accutone Taurus
Taurus | The In-Ear Headset with Bass Tuning Technology & Spin Cable The first thing you notice about the Taurus is perhaps its attractive High-Gloss Mirror-Black finishing, or the Aluminum Spin Cable nob for Dual-Wear, or even perhaps the High-Quality Tangle-Free Cables. It is truly a thing of Beauty. But once you wear them in your ears, you will realize the Taurus is a rare breed, with...


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The Orange County Register reports that USC Coach Steve Sarkisian indicated that redshirt junior RB Tre Madden will probably sit out Saturday's game at Boston College.
The Los Angeles Daily News reports that USC redshirt junior RB Tre Madden could be out for a month because of his turf toe injury.
USC redshirt junior RB Tre Madden (toe) is considered questionable for the opener against Fresno State and will be a game-time decision.
USC redshirt sophomore RB Tre Madden is considered questionable for Saturday's game against Notre Dame.
Tre Madden, who moved to running back from linebacker this spring, will miss the 2012 season after tearing a ligament in his left knee.
For at least the time being, USC is moving Tre Madden from linebacker to tailback.


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The CubeMotion network is a network of websites and services run by a group of website administrators and developers. With thousands of hours of combined experience, we're proud of our unique range of offerings used by the internet on a daily basis.
Our line of services range from hosting, to websites processing millions of requests daily. The variety of services we offer enable us to provide insight from different technical areas over all projects, to provide the most optimal mix of both quality, and reliability.
ServerCrate is a premium web hosting service, offering hosting tools ranging from web hosting, to managed game servers. In operation since late 2012, we're relatively new to the web hosting space, although for the last year we've been offering performence hosting services to people in over 100+ countries.Visit ServerCrate


text:
Browse wiki
|Finger 2
|Computer languages
|Documentation note
|User online manual available at http://www.gnu.org/software/finger/manual/
|Full description
|A modern computing facility consists of on … A modern computing facility consists of one user per host, and many hosts per site. To find out about logged on users at another site you must query each host to find out about an individual user. With GNU Finger, a single host is designated the finger "server" host and collects information about who is logged on to other hosts at that site. A user then needs to query only the server host, instead of each host at that site. GNU Finger follows the finger "protocol" (rules for communication) in responding to simple requests, since this protocol is siple. But it can also implement another protocol that lets two finger programs exchange information in a predetermined way; this allows faster and wider bandwidth communication. faster and wider bandwidth communication.
|Homepage URL
|http://www.gnu.org/software/finger/finger.html +
|command-line +
|security +
|Is GNU
|true +
|Internet + , finger + , Unix +
|Last review by
|Janet Casey +
|Last review date
|21 February 2008 +
|GPLv2orlater +
|License verified by
|Janet Casey +
|License verified date
|31 January 2001 +
|Finger +
|Real name
|Chris Cooper +
|Related projects
|Fingerd +
|Resource URL
|mailto:email@example.com + , mailto:email@example.com +
|Resource audience
|Bug Tracking + , Developer + , Support +
|Resource kind
|E-mail +
|219 +
|12 April 2011 08:20:07 +
|User:WikiSysop +
|Maintainer +
|Short description
|Lets Unix users exchange information +
|Submitted by
|Database conversion +
|Submitted date
|1 April 2011 +
|internet-application + , security +
|User level
|none +
|Version comment
|1.37 stable released 1992-10-28
|Version date
|28 October 1992 +
|Version download
|http://ftp.gnu.org/pub/gnu/finger/finger-1.37.tar.gz +
|Version identifier
|1.37 +
|Version status
|stable +
|Has queryThis property is a special property in this wiki.
|Finger 2 + , Finger 2 + , Finger 2 + , Finger 2 + , Finger 2 + , Finger 2 + , Finger 2 + , Finger 2 + , Finger 2 +
|Modification dateThis property is a special property in this wiki.
|10 April 2015 23:24:45 +
|Page has default formThis property is a special property in this wiki.
|Entry +
|Has subobjectThis property is a special property in this wiki.
|Finger 2 + , Finger 2 + , Finger 2 + , Finger 2 +
|EmailThis property is a special property in this wiki.
|firstname.lastname@example.com +
|show properties that link here
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page "GNU Free Documentation License".
The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.


text:
Sharapova: Athlete relationships 'manageable'
MELBOURNE — Maria Sharapova has insisted it's "manageable" to date a fellow top athlete after her relationship with Bulgarian player Grigor Dimitrov set tongues wagging.
"I think it's very manageable. We have a very hectic lifestyle and travelling schedule, but in a way, this is what we do and we have to accept it," she said, according to Melbourne's Herald Sun.
Sharapova broke up last year with Slovenian basketball player Sasha Vujacic, but her relationship with Dimitrov, nicknamed "Baby Federer" for his playing style, has been the talk of the tennis circuit in recent weeks.
"Relationships are important in life," she was quoted as saying. "Tennis only lasts as long as your body allows, and there is another step in life — relationships.
"It's a matter of how you think and manage it."
Dimitrov has bristled at questions about Sharapova, calling it a "privacy invasion".
Meanwhile, former women's number one Caroline Wozniacki is usually happy to talk about her relationship with top golf star Rory McIlroy.
Get Inquirer updates while on the go, add us on these apps:
Disclaimer: The comments uploaded on this site do not necessarily represent or reflect the views of management and owner of INQUIRER.net. We reserve the right to exclude comments that we deem to be inconsistent with our editorial standards.
To subscribe to the Philippine Daily Inquirer newspaper in the Philippines, call +63 2 896-6000 for Metro Manila and Metro Cebu or email your subscription request here.
Factual errors? Contact the Philippine Daily Inquirer's day desk. Believe this article violates journalistic ethics? Contact the Inquirer's Reader's Advocate. Or write The Readers' Advocate:
c/o Philippine Daily Inquirer Chino Roces Avenue corner Yague and Mascardo Streets, Makati City,Metro Manila, Philippines Or fax nos. +63 2 8974793 to 94


text:
Committed to becoming one of Asia's first-class financial institutions, Fubon Financial Holdings has built a strong lineup of financial service companies. Its major subsidiaries include Taipei Fubon Bank, Fubon Bank (China), Fubon Bank (Hong Kong), Fubon Life, Fubon Insurance and Fubon Securities. With total assets of US$171.53 billion as of Dec. 2014, the Company is the second largest listed financial holding company in Taiwan and also the most profitable financial holding company in Taiwan for five consecutive years.
Fubon Financial Holdings has also moved aggressively to extend its reach throughout Greater China. Fubon Financial Holdings acquired a stake in Xiamen Bank through Fubon Bank (Hong Kong) in 2008. Fubon Property & Casualty Insurance began operations in 2010.
Founder Fubon Fund Management, a fund management joint venture between Fubon Asset Management and Founder Securities, unveiled in July 2011. In January 2014, Fubon Financial Holdings and Taipei Fubon Bank acquired a controlling 80% stake in Shanghai-based First Sino Bank. The Bank later changed its name to Fubon Bank (China). The acquisition represented the most important milestone to date in Fubon's long-term push into China, and established Fubon Financial Holdings as Taiwan's only financial institution with banking subsidiaries in Greater China.
Looking ahead, Fubon Financial Holdings will continue to strengthen their presence in Taiwan and pursue stable growth. At the same time, Fubon Financial Holdings will continue to search for suitable M&A opportunities in Greater China in order to develop a foothold in the regional market and move closer to the goal of becoming a first-class business group in Asia.
【Company Overview Film】


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Campus Sexual Assault Survey Finds One in Six MIT Women Are Survivors
One in six women at the Massachusetts Institute of Technology have experienced some form of sexual assault, but only 5 percent have reported it.
Staff at Immigration Center Accused of Sexually Abusing Women Detainees
Several civil rights organizations have filed a complaint against a privately run detention center in Texas, citing widespread allegations of sexual abuse and harassment.
Legislation to Support Testing of Backlogged Rape Kits Goes to President's Desk
The Senate on Thursday voted to renew the Debbie Smith Act, aimed at cutting the backlog of untested rape kits. The bill, already passed in the House, now heads to President Obama to become law.
Ohio State University Agrees to Strengthen Sexual Assault Policies, Ending Federal Investigation
The United States Department of Education has completed its investigation into The Ohio State University's compliance with anti-sex discrimination law Title IX, and OSU has agreed to take steps to strengthen its policies on sexual assault and harassment.
New California Law Takes Military Sexual Assault Cases Out of the Chain of Command
The law also now requires the California Military Department to report annually to the state government on sexual assault incidences and prevention plans.
Senator Boxer Pushes for Sexual Assault Victim's Advocates at California Universities
Senator Barbara Boxer urged California universities to create independent sexual assault victim's advocates on their campuses in a letter sent out on Tuesday.
Peru Finally Complies with Sexual Assault Settlement
Twenty years ago, a doctor at a hospital in Peru raped a 22-year-old woman who was getting medical care. Now, after human-rights groups fought for the case, the Peruvian government has finally settled the case.
Congress Introduces Legislation to Protect Students from Sexual Assault
The Campus Accountability and Safety Act, cosponsored by Senators Claire McCaskill, Dean Heller, Richard Blumenthal, Chuck Grassley, Kirsten Gillibrand, Kelly Ayotte, Mark Warner, and Marco Rubio, focuses on steps colleges can take to proactively protect students.
University of Connecticut to Pay Over $1.2 Million in Sexual Assault Settlement
The University of Connecticut will have to pay almost $1.3 million in settlement fees on a sexual assault lawsuit - but school officials refuse to admit guilt.
'Revenge Rape' in India Leads to Three Arrests
A man in eastern India was arrested for allegedly raping a 14-year-old girl this week in "retaliation" for the girl's brother having allegedly sexually assaulted a woman.
Senate Set to Approve Rape Kit Backlog Funds
The Senate today is expected to approve $41 million in funding to process hundreds of thousands of untested rape kits across the country.
Global Summit to End Sexual Violence in Conflict Convenes This Week
British Foreign Secretary William Hague and actress and United Nations special envoy Angelina Jolie are co-chairing the event, the largest ever of its kind.
Veterans Groups File Lawsuit Alleging Discrimination Against Military Sexual Assault Survivors
The lawsuit alleges that the VA makes military sexual assault survivors who are suffering from post-traumatic stress disorder (PTSD) go through more procedural hurdles than other veterans to receive disability benefits.
Students and Activists Demand Sexual Assault Reform at Dartmouth
Thousands of people are calling on Dartmouth College to improve its sexual assault policies after a student whose name appeared in a "rape guide" on a student-run website was sexually assaulted.
Senate Passes Limited Military Sexual Assault Reform Bill
Only a few days after the Senate blocked the Military Justice Improvement Act (MJIA), it unanimously approved a bill that proposes several different reforms to combat sexual assault in the military.
Senate Blocks Military Justice Improvement Act
"I always hoped we could do the right thing here – and deliver a military justice system that is free from bias and conflict of interest – a military justice system that is worthy of the brave men and women who fight for us."
Students File Two Federal Complaints Against UC Berkeley for Mishandling Campus Sexual Assault Cases
31 current and former University of California at Berkeley filed two federal complaints against the college Wednesday, alleging that the university had failed to properly handle sexual assault cases within good time, investigate serial rapists, and take rape and harassment on campus seriously.
Libya To Compensate Victims of Rape During 2011 Conflict
Compensation could come in the form of financial assistance, a safe place to stay, and physical and psychological health care.
Military Sexual Assault Bill Expected To Come To Vote This Week
"The men and women of our military deserve better," Gillibrand told The Washington Post.
UN and African Union Sign Agreement Addressing Conflict-Related Sexual Violence
"National ownership, leadership and responsibility are absolutely essential if we are to protect women and girls, but also men and boys, from these barbaric crimes."


text:
Spotlight Article:
Favorite Multifamily Retrofits
Which retrofit is better: changing the boiler or changing the lighting? There are so many possibilities for multifamily buildings that choosing the "best" retrofit depends a lot on your definition. Are you after the most ...
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New Report Reveals Importance of Energy Efficiency in Keeping Electricity Rates Low
Clean energy is no longer a niche industry—its presence continues to expand nationwide, with the most recent impacts ...
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Home Performance Coalition Joins Home Energy Information Accelerator
Today, the U.S. Department of Energy announced two new Better Buildings Accelerators, which will convene leaders to focus on ...


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1962 Ford Thunderbird Coupe, My Grandmother bought this car at Earl Wallace Ford in Florida new. All options. No rust. 100% original paper work... More
1960 TR3A daily driver shown locally. Clean interior, garaged and well cared for. Has lots of original details and parts with a spare wire... More
1969 GT 350 Project This is an original 1969 Shelby that needs to be restored. It does however have it's original 351 engine and rebuilt transmission. ... More
The 1968 Shelby GT500KR Convertible is one of the most sought after collector muscle cars ever built. Its low production numbers, totaling a mere... More
1969 Pontiac GTO hardtop with the extremely rare Ram Air IV option and the Muncie close-ratio 4-speed transmission. Verdoro green with black interior. It... More
Fully restored, immaculate 1969 Camaro Indy Pace Car Convertible available now to drive and enjoy. Needs no work or tinkering, EVERYTHING WORKS: the cowl... More
1963 Avanti R1. Automatic, Factory A/C, Power Windows, Steering, Brakes, Twin Traction, Radials, SS exhaust. Excellent condition throughout. Documented history from new, always... More
Up for sale is a gorgeous, Best in Class & Best in Show at the Columbus Auto Show, 1969 Camaro resto mod. 350 automatic... More
1960 Austin Healey Sprite: Iris blue. 1275 engine with 5 speed Datsun transmission, oil cooler, front disc brakes, 3.9 rear differential with competition axle,... More
The Giulietta Sprint was the first Alfa Romeo that, instead of a numerical designation, had a name, one it shared with the Italian actress... More
1967 Cadillac convertible, runs well but not driveable, In storage several years. Needs brakes and transmission rear seal. Body rust including floor. Needs front... More
1966 Corvette Z-06 LS-6 FI Tremec TKO 600R 5 Speed Manual AC Professionally built 1966 Corvette Coupe, frame-on restoration with new 2004 GM Corvette crate... More
1961 Chevrolet Impala 2 Door Hard Top Sports Coupe Reliable Power, Enhanced Performance, Classic Styling, Modern Convenience...This Torch Red, Professionally Restored, "Bubble Top" Chevy... More
If you think about it, there are only a handful of classic American muscle cars that have achieved worldwide acclaim. The Shelby Mustang GT500... More
1963 Bill Thomas Cheetah 1 of 2 1963 Model Proto Types built in 1963 by Bill Thomas Race Cars in Anaheim California, This Cheetah is... More


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'Boardwalk Empire' Previews "The Milkmaid's Lot": Gyp Rosetti Takes OverKevin Fitzpatrick November 8, 2012 @ 7:45 PM
How very rare that when we get to describe the ending to a TV episode as explosive, we mean it literally! 'Boardwalk Empire' season 3 has quite a few pieces to pick up in the wake of this past Sunday's "The Pony," but Gyp Rosetti (Bobby Cannavale) seems to be the one calling the shots for now. Gyp has moved in on Tabor Heights once more and made a big power play to take Nucky out of the picture, but what do the latest clips reveal about his plan?


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- Shopping Bag ( 0 items )
Doody's Review ServiceReviewer: Vincent F Carr, DO, MSA, FACC, FACP (Uniformed Services University of the Health Sciences)
Description: This excellent book attempts to help those in everyday clinical practice to recognize a psychological issue underlying a patient visit and how to focus on the patient without labeling the problem as psychological. The previous edition was published in 2002, the first in 1986.
Purpose: The stated purpose is to give primary care physicians the ability to recognize and address patients' concerns at an early and manageable stage. The authors specifically state this is not a book about long-term or in-depth counseling. This is a fresh approach in a preventative manner of thought, and references a newly published article on the success of the approach.
Audience: Primary care practitioners are the primary focus of this book. Having said that, learning about and reconsidering one's approach to caring and compassion is valuable for all healthcare providers. The authors are well known and honored in the family medicine community.
Features: One of the central themes is the BATHE technique, offered by the authors as a way to foster patient positive thinking. (This is an interview technique that allows the physician to assess the Background situation, the patient's Affect, the problem that is most Troubling for the patient, and the manner in which the patient is Handling the problem. It concludes with the physician's response that conveys Empathy.) The first three chapters give a historical perspective, and the fourth introduces the BATHE technique. Subsequent chapters delve into situations in which the technique may be useful, putting forth specific ideas such as: the practitioner is not responsible for solving the patient's difficulties, that is the patient's responsibility, and how to "end a session."
Assessment: This is an interesting addition and ancillary reading for a primary care practitioner's library. It is worthwhile reading to remind us why we became physicians.


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Mon-Fri: 7am-1am EST / Sat-Sun: 7am-11pm EST
ApplianceJenn-Air Range
Level of DifficultyReally easy
Time to do repair15 - 30 mins
Age of ApplianceMore than 10 years
Screw drivers
Ordered a new heating element (bottom element). Got it the next day. Turned off breaker for the range. Unscrewed the two screws holding the element in. Pulled the element out. Disconneced the two wires the two wires attached to the element. Attached the new element to the two wires. stuffed in the hole. Attached thetwo screws to the back and I'm done. Don't forget to turn the breaker.
Help other customers find the most helpful instructions.
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Part Number: PS2077288
All brand logos are trademarks of their respective owners.
The PartSelect logo is a Registered Trademark of Atlantic Laundry Centres, Ltd.
Copyright © 1999-2015 , Eldis Group Partnership. All rights reserved.


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A microtunnelling apparatus and system that includes an external drive system having rotational and linear thrust drive means, a drill head section having drill rotor and drill rod and connecting to intermediate drill rods allowing extension of the boring hole created by the drill head section driven by the drive system. The drill head includes a modular construction having a plurality of circular disc like elements, a bearing module, a steering module, a spacer module, and a mounting module, for axial alignment and abutment and mounting within a cylindrical steering shell. Directional steering of the drill head includes a plurality of substantially radially extending channels in steering module, each with an hydraulically movable protuberance movable by control means to redirect the outer steering casing and thereby redirect the drill head section mounted on the distal end of the drill rods.
1. A backreaming apparatus comprising:
a plurality of intermediate drill rods configured to connect together to form a string of intermediate drill rod units, each intermediate drill rod unit including a drive shaft rotatably mounted within a casing assembly, the casing assemblies of the intermediate drill rod units being connected together by connections that allow a pull-back load to be transferred through the casing assemblies of the intermediate drill rod units, and the drive shafts of the intermediate drill rod units being connected by connections that allow torque to be transferred through the string of intermediate drill rod units;
a backreamer having a rearwardly facing cutting face positioned adjacent to and facing a first end of the string of intermediate drill rod units; and
an external drive positioned at a second end of the string of drill rod units for applying a pull-back load to the string of intermediate drill rod units and for applying torque to the string of intermediate drill rod units, the torque being transferred to the backreamer by the drive shafts of the intermediate drill rod units and the pull-back load being transferred to the backreamer by the casing assemblies of the intermediate drill rod units, wherein the intermediate drill rod units define a vacuum channel for removing slurry from a hole being backreamed, the vacuum channel having an inlet adjacent the backreamer and an outlet connected to a source of vacuum.
2. The backreaming apparatus of
3. The backreaming apparatus of
4. The backreaming apparatus of
5. The backreaming apparatus of
6. The backreaming apparatus of
7. The backreaming apparatus of
8. The backreaming apparatus of
9. The backreaming apparatus of
10. The backreaming apparatus of
11. The backreaming apparatus of
12. The backreaming apparatus of
13. The backreaming apparatus of
14. The backreaming apparatus of
15. The backreaming apparatus of
16. The backreaming apparatus of
17. The backreaming apparatus of
18. The backreaming apparatus of
19. A method for installing product comprising:
drilling a hole by pushing a rotatable cutting face through the ground by progressively adding drill rod units to a string of drill rod units, wherein each of the drill rod units includes an outer casing assembly for transferring thrust to the cutting face and inner drive shafts for transferring torque to the cutting face;
monitoring a direction of the string of drill rod units using a laser directed through the string of drill rod units to a target located adjacent the cutting face;
after the hole has been drilled, replacing the cutting face with a backreamer; and
enlarging the hole by pulling the backreamer back through the hole with the casing assemblies while applying torque to the backreamer with the drive shafts.
20. The method for installing product of
21. The method of
22. The method of
23. A backreaming apparatus including a distal end configured for connection to product and a proximal end configured for attachment to a distal end of a drill string, the backreaming apparatus comprising:
backreaming cutting elements having cutting sides that face toward the proximal end of the backreaming apparatus;
a proximal assembly that extends between the proximal end of the backreaming apparatus and the backreaming cutting elements, the proximal assembly defining a vacuum passage for removing material cut by the backreaming cutting elements, the proximal assembly being configured to be attached to the drill string adapted to pull the backreaming apparatus through a previously drilled hole;
a drive stem for transferring torque to the backreaming cutting elements for driving the cutting elements about a longitudinal axis of the backreaming apparatus, the drive stem being rotatably supported within the proximal assembly; and
a distal assembly that extends between the backreaming cutting elements and the distal end of the backreaming apparatus, the distal assembly being configured to be attached to product desired to be pulled behind the backreaming apparatus into the hole during backreaming; and
a vacuum blocking plate positioned distally with respect to the backreaming cutting elements, the vacuum blocking plate having an outer diameter generally equal to an outer cutting diameter of the backreaming cutting elements.
24. The backreaming apparatus of
This application is a National Stage Application of PCT/AU2006/001122, filed 8 Aug. 2006, which claims benefit of Serial No. 2006903269, filed 16 Jun. 2006 in Australia and which applications are incorporated herein by reference. To the extent appropriate, a claim of priority is made to each of the above disclosed applications.
This invention relates to underground boring and more particularly to an improved microtunnelling system and apparatus.
In this document "microtunnelling" is considered to comprise trenchless horizontal boring of a bore of the order of 600 millimeters and less.
Modern installation techniques provide for underground installation of services required for community infrastructure. Sewage, water, electricity, gas and telecommunication services are increasingly being placed underground for improved safety and to create more visually pleasing surroundings that are not cluttered with open services.
Currently, the most utilised method for underground works is to excavate an open cut trench. This is where a trench is cut from the top surface and after insertion of piping or optical cable is then back-filled. This method is reasonably practical in areas of new construction where the lack of buildings, roads and infrastructure does not provide an obstacle to this method. However, in areas supporting existing construction, an open cut trench provides obvious disadvantages, major disruptions to roadways and high possibility of destruction of existing infrastructure (i.e. previously buried utilities). Also, when an open cut trench is completed and backfilled the resultant shift in the ground structure rarely results in a satisfactory end result as the trench site often sinks. Open trenches are also unsafe to pedestrians and workers.
Another concept employed for underground works is that of boring a horizontal underground hole. Several methods employ this philosophy as it generally overcomes the issues of disruption to roads and infrastructure as described for open cut trenches however even these methods have their inherent problems.
One method is horizontal directional drilling (HDD). In this method a boring device is situated on the ground surface and drills a hole into the ground at an oblique angle with respect to the ground surface. A drilling fluid is typically flowed through the drill string, over the boring tool, and back up the borehole in order to remove cuttings and dirt. After the boring tool reaches a desired depth, the tool is then directed along a substantially horizontal path to create a horizontal borehole. After the desired length of borehole has been obtained, the tool is then directed upwards to break through to the surface. A reamer is then attached to the drill string, which is pulled back through the borehole, thus reaming out the borehole to a larger diameter. It is common to attach a utility line or other conduit to the reaming tool so that it is dragged through the borehole along with the reamer. A major problem with this method is that the steering mechanism is extremely inaccurate and unsuitable for applications on grade. The stop and start action utilised by the operator results in a bore that is not completely straight. The operator has no way of knowing exactly where the hole goes which can result in damage to existing utilities. This could pose a safety threat particularly if the services in the area are of a volatile nature.
Another method is the pilot displacement method. This method uses a drill string pushed into the ground and rotated by a jacking frame. A theodolite is focused along the drill string as a point of reference to keep the line on grade. This system is not accurately steered. The slant on the nose is pointed in the direction of intended steering. The position of the head is monitored through a total station with a grade and line set and measuring this point against a target mounted in the head of the pilot string. If the ground conditions are homogenous and the conditions absolutely perfect, it will produce a satisfactory bore. Unfortunately this is rarely the case. Ground conditions are generally variable the pilot tube will tend to steer towards whichever ground offers the least resistance irrespective of the direction in which you are the steering. As the drill strings are generally short, the time to drill is often slow with repeated connections making the process tedious. Once the bore reaches the reception shaft augers are attached and pulled back along the bore to displace the spoil into the reception shaft. This then has to be manually removed which is time consuming.
Slurry style microtunnelling utilises slurry reticulation to transport spoil removal throughout the installation process. Two lines are fed via a starting shaft along the bore. The pipes are jacked via a hydraulic jacking frame into the hole. Water is forced along the feed pipe to the cutting face where the spoil slurry of rock and mud is forced back along the return pipe. Whilst enjoying a good degree of accuracy, this system requires a structural shaft that needs a massive amount of force to push the pipes. This results in a large, expensive jacking shaft pit that is time consuming to build. The sheer weight and size of the components make them slow to connect and cumbersome to use. If the unit becomes damaged or stuck in the bore, the only method available to retrieve the unit would be to dig down onto the drill head location.
In one form of boring machine shown by US Patent Application No. US2004/0108139 to Davies and corresponding to Australian Patent 2003262292 there is disclosed a micro tunnelling machine having a tunnelling head with a boring bit which is forced in a horizontal direction by an hydraulic thruster. The direction of the head is laser guided. The beam strikes a target in the head and a camera relays an image of the target to an operator located at the tunnel entrance. The operator adjusts the direction by admitting water and draining water from a pair of rams inside the head, which move the boring bit up and down or left and right. A semi automatic version is disclosed in which a microprocessor adjusts the direction until the operator assumes control. In particular the invention is claimed to be a guidance system for the boring head of a micro-tunnelling machine of the type which bores in a selected direction and inclination using laser beam guidance having the endmost part of the drive to the boring bit adjustable in two directions at 90�, wherein, the endmost part of the drive has a target for the laser beam, means to convey an image of the target and the laser strike position thereon to an operator situated remotely from the boring head and input means for the operator to adjust the direction of the endmost part of the drive.
The major approach of the directional control of the disclosed apparatus of US Patent Application No. US2004/0108139 to Davies is to have the drive shaft connected at its end distal to the cutting edge in a manner that allows the drive shaft to move as required and to allow the cutting element to be redirected to correct position as determined by the laser controlled directional system. However this form of apparatus places all the strain on an elongated movable drive shaft retained by cylinders and therefore readily increases the risk of breakage. There is clearly a need to provide an improved system to decrease chance of breakage of the drill head components.
It can be appreciated that present methods of underground tunnelling are cumbersome, inaccurate; and require repeated halting of boring operations due to waste removal and heating effects. Moreover, there is an inherent delay resulting from replacement of parts of conventional boring systems since it usually requires the boring tool to be recovered from the site and returned to the assembly factory. Recovery in itself can be cumbersome and expensive particularly if a new vertical access hole is required to recover the tool. This could damage the road or services under which the bored tunnel is extending. Further present systems are unable to accurately remain on fixed boring direction, which are often needed when a buried obstruction is detected or changing soil conditions are encountered.
In accordance with the invention there is provided an apparatus and method for underground boring on grade more particularly to an improved microtunnelling system and apparatus.
In this document "microtunnelling" is considered to comprise trenchless horizontal boring of a bore of the order of 600 millimeters and less. This is particularly relevant to the insurgence of pipes of the order of around 300 millimeters.
The drawbacks of current microtunnelling technology are significant and have been overcome or are at least ameliorated by the current invention including one or more of the following improvements and other improvements as will be understood from the description.
A first fundamental improvement is the use of an external casing with flow channels therein and the drive rod mounted therein and allows for all cabling and hosing to be mounted in an external cavity, which thereby allows for continuous cabling over a plurality of encased intermediate drill rods.
A second fundamental improvement is the incorporation of the driveline within the vacuum chamber. Incorporating the rotation within the vacuum achieves multiple goals. Firstly, the vacuum area can be dramatically increased and so maximize the machines ability to remove spoil and in such increased productivity. Secondly, the rotation component of the drill rod generates heat. The removal of this heat from the laser area is critical to laser accuracy. By combining the rotation into the vacuum area, any heat generated is immediately removed and the laser therefore is unaffected.
A third fundamental improvement is the steering mechanism of the encased drill rod using radially protrusions engaging steering shell to direct the drill head and prevent any undue force on the drill head centrally mounted within the casing.
A fourth fundamental improvement is the modular structure of the drill head by a plurality of disc like modules that can be created by direct external etching, drilling or casting or the like and be combined in cylindrical shells to form a readily assembled drill head.
A fifth fundamental improvement is the modular components of the drive means that allows for differing rotational units to be used with a thrust unit that provides linear pull as well as push capabilities. This allows matching of rotational units to material being bored and size of pipe being inserted and further allows for reverse reaming to a larger diameter after initial bore has been accurately drilled.
In order that the invention is more readily understood an embodiment will be described by way of illustration only with reference to the drawings wherein:
Referring to the drawings there is shown a microtunnelling apparatus and system that comprises a drive system (11), a drill head section (20) and intermediate drill rods (41) allowing extension of the boring hole created by the drill head section driven by the drive system.
The drive system (11) as shown in
To the front of the rotation module (14) is attached encased intermediate drill rods (41) such as shown in
Attached to the distal end of the last intermediate drill rod (41) is attached a drill head (20) shown in exploded view in
The casing (42) of the intermediate drill rods (41) and the casing of the drill head (20) formed by the steering shell (6) and the rear shell (5) form a continuous covering of the continuous drill string with internal defined continuous bores or channels. In particular a vacuum channel (51), as shown particularly in
The microtunnelling system and apparatus further includes:
In use upon excavation of a launching shaft, the base of the shaft would be prepared for the installation of the drilling machine. The shaft would typically have a pipe invert start point already marked and a line surveyed. A laser would be set up in the shaft at the extreme rear on line and grade. Thick boards are typically placed along the base of the shaft horizontally on grade. The microtunnelling drive means (11) including thrust module (13) and rotation unit (14) is lowered into the shaft and set up on line and grade.
The drill head (20) is lowered into the shaft and data, hydraulic and pressure fluid lines (44) are attached to the drill head (20). The drill head size and ground conditions are entered into the control panel which selects appropriate parameters for drill thrust speed and force, drill rotation speed and torque, vacuum flow and pressure, and pressure fluid flow. The drill head is attached to the vacuum thrust adaptor mounted on the rotation unit. Once set in launch mode, the vacuum unit is started and the pressurised drill fluid is actuated to eject at the drill face. The drill head is launched into the earth face.
The hole is cut via a combination of rotating cutting tooling and assisted by ejecting pressurised fluid. This pressurised fluid flow, which also acts as a fluid bearing, is shown in bold in
Once in the start position an intermediate drill rod (41) is loaded either manually with a crane or via the use of the automated rod loader. Once the drill rod is sitting in the bed of the thrust module the thrust trolley and rotation unit are started at low speed, low thrust and low torque respectively to engage the drill rod. The rod engagement is automatic in that the drill rod has self-aligning pins (48) that accurately aligns the rod to both the drill head and the drill machine. Upon full alignment and further forward travel, the self-locking toggles (shown in detail in
Operation of the microtunnelling machine is performed remotely via a control box, which displays all the current pressure and speed settings. The control box is computerised and integrates the control of the steering, thrust module, rotation unit, vacuum unit and the pressure fluid. The operator can adjust any of the parametric settings to perfectly suit the current ground conditions. Both the drilling process and the steering process can be automated via the use of integrated computer software and can also be manually controlled. Throughout the drilling process the drill position is monitored via the laser hitting a target positioned in the drill head (20) and viewed through the use of closed circuit television (CCTV) so that the operator or software package constantly steers the drill head to keep the laser in the centre of the target.
Once the bore is complete there are three options; progress the drill rods into the reception shaft whilst inserting jacking pipes, pull back to the launching shaft whilst trailing a pipe directly behind it, or remove the drill rods prior to pipe insertion.
Currently, the microtunnelling industry only allows for forward excavation. The current invention is the only system of microtunnelling that incorporates precision back reaming. As shown in
Back reaming allows use of low cost reamers to open the hole for different pipe size installations. Back reaming also utilises one size drill head and drill rod for each thrust module which in turn simplifies the rod loading process and reduces overall equipment cost.
Looking at the apparatus in further detail the system includes:
The thrust module, which is installed in the launching shaft, can provide 300 kN force for thrust and pullback of 2.5 meter stroke within a longitudinal space of 3.0 meters. The thrust module uses rack and pinion gearing for increased stroke to retracted length ratio. It provides a high load capability with positive force. Pressure, force and speed are fully adjustable for both thrust and pull back and have a programmable stroke with adjustable limit stops for the trolley assembly. Overall the thrust module allows fast drop in boxes for the rotation unit.
A variety of rotation modules can be selectively utilised with the one thrust module according to the requirements. Rotation modules ideally cater for one drill diameter, by maximizing available hydraulic power, rotating at ideal speeds (rpm) by maintaining optimum cutting face surface speeds (m/min) to best utilize working range of tungsten and carbide cutting inserts, and by maintaining the most desirable cut face/vacuum area ratio. Other sizes of rotation modules can also be used but with less efficiency.
Each rotation module comprises its own hydraulic motor (low speed/high torque, high speed/low torque, two-speed automatic selective unit, or other) coupled through a drive train assembly (chain and sprockets, simple gear box, planetary gearbox, or other) to rotate a drive shaft with a hexagonal end, which is to be coupled to the drill string inside the drill rods.
Each rotation module also includes a Vacuum thrust adaptor for connection with drill rods. This vacuum thrust adaptor incorporates the features suited to each drill rod, being vacuum sealing method, drill rod alignment, drill string torque transmission connection, thrust face and pullback connection. The Vacuum thrust adaptor also houses any hydraulic clamping and disconnection mechanisms for drill rods.
The microtunnelling machine targets extremely precise small diameter trenchless pipe installations particularly <600 mm and more particularly <300 mm. This is achieved by tracking a laser striking a target in the drill head, which is monitored via CCTV in the drill head and then steered accordingly to maintain line and grade. A unique fluid bush assembly transmits water and thrust to the rotating cutting face, where the pressure water and subsequent cutting spoil are mixed to a slurry for removal by vacuum extraction.
The drill head utilises a unique radial steering system capable of directly variable directional changes to continually and precisely cut the bore hole. The drill head is progressed through the ground by connecting subsequent drill rods between the drill head and thrust module until final bore length is achieved. These drill rods are either encased or open and combine rotation shaft/drill string, vacuum, air and control channels providing mechanical and control workings. Hydraulics, water and data is remotely controlled and utilised by the operator at the remote control panel and conveyed by cables and pressure hoses.
The front cutting rotor assembly consists of tungsten, carbide or other sintered hard metal inserts housed both axially and radially on a variety of face styles. The shape of the front cutting face varies remarkably with ground conditions, and can be flat, piloted or conical in shape and is built to suit.
All front cutting rotors are designed so that cuttings large enough to potentially block drill head vacuum cavity are kept ahead of cutters for further processing (mixing, cutting, grinding or shattering). Once cuttings are small enough, they are permitted past the cutter face for vacuum extraction.
A clay cutting face will have a multitude of spokes (range from 3 to 6) possibly connected together again to an outer rim. The main consideration is the clay consistency, as the openings through the cutting face are calculated to restrict cut spoil ahead of the cutter until small enough to be able to fit through the vacuum chamber of the drill head. When clay is soft it is easy to drill, but builds on itself and can cause blockages if the correct cutter is not chosen.
A shale cutting face will be similar to the clay version, but face openings are modified to allow for front regrind of large chipped material prior to vacuum extraction.
A rock cutting face generally comprises a cutter face with three, six or nine conical roller assemblies with peripheral openings (usually three) for cutting spoil extraction. Utilizing multiple small diameter conical rollers, each set of three are staggered in distance and angle from the front face. The inner set of three cones being most forward, the intermediate set radially skewed from the inner at 60 degrees and setback by 25-100% of the cut diameter, and the final set again radially skewed from the intermediate at 60 degrees to bring the inner conical portion back in line with the radial centre-lines of the inner set of cones, and setback from the intermediate face by another 25-100% of the cut diameter. Roller cutter face then has the benefit of continual steering capability, increased stability in non-homogenous ground conditions, and increased chip rate resulting in less regrind time prior to vacuum extraction of spoil.
Downhole drilling technology has been using "tri-cone" rollers to cut rock for decades. They are available in a variety of grades—soft, medium and hard formation. A tri-cone roller utilises three conical rollers, equispaced at 120 degrees, fitted with hard metal inserts each rotating about their own bearing shaft. The conical shape of each roller, tapered into the centre of the cutting face, rotating about an axis skewed 60 degrees forward in towards the centre of the cutter results in a full flat face cut diameter. The resultant large flat cutting face is very difficult to maintain stability in non-homogenous ground, and due to the size of three rollers required to obtain the full cut diameter, the axial distance traveled prior to any steering response is often half the cut diameter.
All front cutting rotors have pressure fluid ports. Holes are drilled radially to the centre of the cutter to coincide with the porting on the drill shaft. Additional holes are drilled axially from both the front and rear faces of the cutter. These holes are sized approx 2 mm diameter to allow extreme pressure at face for best cutting and mixing qualities with minimal pressure fluid usage. An internal chamfer on front ports to increase surface area at opening only to allow for blockage ejection. Rear ports are directed back towards drill head to aid in clearing any residues from air channel and vacuum cavity.
All front cutting rotors have a central cavity for connection with the drill shaft in the drill head. This cavity is either threaded with a trapezoidal or acme thread taking up onto a shoulder on the shaft, or a hollow hexagon for the quick connection arrangement used in conjunction with a front threaded cone and lock bolt. Both styles accommodate for through shaft and cutter pressure fluid transmission.
The drill head drives the front cutting rotor by way of the drill shaft. The front of the shaft is a male hexagonal drive, with 75-100% of across flats dimension of the hexagon in length, with a front threaded extension generally 50-75% of the across flats dimension of the hexagon in diameter, and 75-100% of the thread diameter in length.
The drill rod is radially drilled (eg 3�5 mm diameter holes at 120 degrees) through the faces of the hexagonal final drive through to a central larger axial port (eg 8 mm-12 mm diameter). This axial port is drilled as a blind hole into the drill shaft, to the length corresponding to the position of the front fluid bush. Here, another series of smaller radial holes are drilled through to meet with the axial port (eg 3�5 mm diameter holes at 120 degrees). These holes are peened (eg 8-10 mm concave diameter) to eliminate any seal degradation from the rotating shaft.
The front fluid bearing bush encapsulates this mid-front section of the drill rod and provides a centralized bearing location capable of high radial and thrust forces combined. The peened radial holes of the drill rod are longitudinally aligned with the internal radial pressure fluid distribution groove of the fluid bearing bush.
This groove is in turn fed pressure fluid from radial drill holes (eg 6�5 mm diameter holes equispaced at 60 degrees). Fluid cannot escape to the rear of the fluid bush due to an energizing U-cup seal placed at the rear of bearing module 1. Pressure fluid is proportionally distributed-to the drill shaft axial port through to the front cutting rotor, creating back pressure to distribute to the annulus area between the outside diameter of the drill rod and the inside diameter of the fluid bush. This is achieved by high helix angle, low depth multi-start grooves machined on the inside of the fluid bush from the front edge of the distribution groove to the front face of the fluid bush (eg triple-start, 20 mm pitch 0.5 mm deep grooves with 1.5 mm concave radius). This pressure fluid is then channelled to a helical spiral groove on the front face of the bush (eg single 10 mm pitch continuously decreasing right-hand 0.5 mm deep face groove with 1.5 mm concave radius). This channelling effect essentially hydrostatically separates the shaft from the bush both radially and axially, to counteract steering and thrust face forces. The relationship is linearly proportional in that the higher the load, the harder the faces act against one another, providing a greater hydrostatic seal, which in turn acts to repel the two components. Hence we have a bearing, which mechanically transfers load, provides a pressure fluid swivel, and continually lubricates and cools itself. This method allows a very strong shaft construction with minimal stress riser points, and excellent pressure fluid conveyance.
The drill head functions to drive the front cutting rotor by means of a drill rod. The bore hole position is monitored within the drill head by means of a laser set at the launch shaft indicating a position on a target mounted in the drill head. A camera within the drill head is directed at the target, and relays a video image to a video screen viewed by the machine operator. The operator controls any required steering direction changes. Steering is achieved by altering the position of the cutting face relative to the bore hole.
The prior art was to manufacture a cylindrical drill head, and moving the cutting face. One steering method is to pivot the front portion of the drill head vertically and horizontally. Although effective in steering, this required the laser target to be situated a considerable distance from the cutting face. The further rearward the laser target position, the further the distance is required to be drilled prior to an update of current bore face location.
Another steering method is to move the drill shaft within the drill head. This has the advantage of being able to mount the laser target further forward in the drill head, and therefore, providing a more accurate target to bore face position. However, the pivotal mounting of these steering mechanisms provides a weak steering with high failure rates and increased maintenance.
These past methods of steering are physically large and cumbersome, and due to plumbing required to each hydraulic cylinder, makes this method unsuitable to small diameter drill head design. The invention entails construction of a modular drill head for increased strength and reduced size.
The drill head is of a segmental modular design to minimize overall size while achieving maximum strength and durability. Each module is centralized and retained by the next module by male and female stepped spigots. Clamping of each module achieves angular alignment and axial clamping. Each module is designed for its particular purpose in the drill head, and all hydraulic, fluid, air and vacuum channels are interconnected by way of stepped face seals. It is this method of construction that allows the use of integrated pressure porting, reliable bearing design, maximum vacuum area, good air channel ducting, maximum forward position of laser target area and plumb indicator for visual head tilt indication.
The drill head and steering module for use in the microtunnelling system has a steering shell2 mounted axially on the drive rod (22) in a manner to allow radial movement and having a plurality of radially mounted pistons able to engage the inner surface of the steering shell 6 such that the control of the protrusion of the plurality of radially mounted pistons controls the direction of the steering shell.
As shown particularly in
As shown in
One of the circular disc like elements forms a bearing module l at the front of the drill head with flow paths for providing axially extending fluid jets to assist cutting and radially extending flow paths to assist aquaplaning bearings of the rotating cutting means.
One of the circular disc like elements forms a steering module 2 at the front of the drill head with flow paths for providing axially extending fluid jets to control protrusion of pistons to engage the outer cylinder and alter direction of the drill head.
One of the circular disc like elements forms a spacer module 3 within the drill head with flow paths for providing axially extending flow paths to adjacent modules.
One of the circular disc like elements forms a mounting module 4 at the rear of the drill head with flow paths for providing axially extending flow paths and able to form non rigid mounting of base of outer cylinder.
The drill rod (22) and connected intermediate drill rods (23) are a steel rod drive shaft, with male and female hexagonal ends to effect connection and resist torsional forces. The drill rod and connected intermediate drill rods are retained within either end of the drill rod end plates by front and rear rod bush bearings. The drill rod and connected intermediate drill rods are housed in an axially extending tubular section (51) to separate the bearings from the spoil through the vacuum section. The axially extending tubular section drill string housing is located fully within the vacuum chamber, surrounded by the vacuum channel and vacuum cavities. It is this full surround by vacuum that functions to absorb heat created by the rotating drill string, transferring it directly to the slurry and spoil cuttings and fluid returning from the drill head, and in turn to the vacuum waste tank.
The laser beam used for drill head guidance travels through the protected top air channel (52). It is the effective removal of heat and creation of a stable laser environment that minimizes otherwise unavoidable hot-cold transitions at every drill rod connection. In past drill rods, these hot-cold transitions cause consecutive and culminating laser refraction, leading to an inaccurate borehole.
During connection the drill rods (23, 23) are pushed together. The vacuum thrust adaptor has two conical combination pins (48) in the male drill rod end plate (47) about the rod's longitudinal axis and centered vertically about the drive, and offset equidistant about the horizontal plane. These combination pins have a conical taper at the front and align with two bores (49) in the female drill rod end plate (46) about the rod's longitudinal axis. As the pins are further inserted, the drill rod is aligned to a horizontal plane; the drill rod and connected hexagonal intermediate drill rods are aligned and further inserted until the two end plate faces are mating.
Consecutively during this alignment process, the toggles mounted to the female end plate are caused to pivot about the pivot bush axis, moving radially outwards from the end plate diameter, allowing the major diameter of the combination pins past the toggles. Once the Combination Pins pass the major diameter, the toggles are allowed to spring back to their original position, moving in between the combination pins and the female end plate, thus locking the connection, and allowing either thrust or pullback under load. Once the drill rod end plates are mated face to face, the vacuum and laser space are sealed due to the elastomeric seals inserted in the milled grooves of the female plate.
Referring to
As shown in
The steering shell 6 comprises a hollow tubular section with a front end stepped return section reducing in inside diameter then tapered both internally and externally towards the front. This front stepped return is faced up against the front of bearing module 1, and the main inner bore has full annular clearance around the circumference of the steering ring assembly allowing the shell to move about radially in any direction. As one piston in the steering module 2 is actuated, the steering shell 6 is forced radially and moves with the extending piston. As the opposing side of the steering shell 6 moves in towards the steering ring assembly, the piston radially opposed to that actuated is in turn retracted, allowing for the next steering manoeuvre. The same applies to the other set of pistons acting about an axis at 90 degrees to the first set of pistons. This actuation on 2-cylinder movement axes, either independently or together allows the drill head to alter its shaft and cutter position relative to the bored hole thus providing steering control.
The hydraulically steered drill head has a fast system for changing cutting tooling. Rock capabilities have been enhanced with the design of a rock roller system for the microtunnelling unit.
The drill head has been modified to accommodate the covered drill rod system and designed to allow for the introduction of automated steering. Drill head segmental design allows for strength and durability whilst enhancing the ability to maintain drill head positioning via hydraulic rams holding a position of one circular piece within a second circular ring providing for maximum strength in minimal space.
The drill shaft must rotate freely under high loads, and pressure fluid must be transferred to the drill face. The use of high-pressure fluids out of the drill face allows for enhanced tooling life whilst also giving the ability to flush tacky ground.
The prior art was to retain the shaft within steel bearings, either tapered roller, or ball bearings with needle thrust bearing. This solved the mechanical rotation issue, but brought with it a whole plethora of associated problems to do with sealing bearings from ingress of cutting spoil and water, both ingredients deadly to bearings. Maintenance is increased as seals and bearings have to be replaced regularly. If a bearing was to seize, it would halt the complete drilling process, drill head would have to be removed for overhaul, causing unplanned down-time and site delays.
The prior art for pressure fluid transmission is with a pressure swivel assembly, which rotates about the shaft axis. The swivel construction would be tubular in design with two pressure seals axially opposed to retain a central pressure chamber within the swivel. A threaded inlet port enters this central pressure chamber radially, flows around the axis of the cavity, through a radial hole drilled in the drill shaft, then through an axial hole in the drill shaft to the front face. This design required external retention of the swivel housing to stop it rotating with the drill shaft, causing radial side-loads on one inside face, in turn, causing seal failure and therefore leakage. The seals had to have a high preload to accommodate high pressure, and would wear grooves in the drill shaft, causing leakage. The swivel would be located behind the target position, so any water spray from leaks would upset visual sight of target. Using pipe fittings from the swivel housing with elbows to bring hose in axially beside drill shaft meant size was too large to be used in small diameter drill heads, assembly and maintenance of hose and fittings would be awkward at best.
The invention entails construction of a modular designed drill head, with integrated pressure fluid conveyance cavities. Further, the invention includes the use of a fluid bearing bush to act as a front drill rod bearing and pressure swivel in one assembly. The fluid bearing bush is retained in the bearing module 1 by three grub screws (equispaced at 120 degrees). Pressure fluid directed to the distribution groove in the bearing module 1 is sealed form escaping past the inside of the stepped bush bore and the outside diameter of the fluid bearing bush by means of two O-ring seals on each side of the distribution groove. This bearing module 1 distribution groove is longitudinally aligned with radial drill holes (eg 6�5 mm diameter holes equispaced at 60 degrees) around the perimeter of the fluid bearing bush. These drill holes enter the inside diameter of the bush and are interconnected with an internal radial distribution groove within the fluid bearing bush. Fluid cannot escape to the rear of the fluid bush due to an energizing U-cup seal placed at the rear of bearing module 1.
The fluid bearing bush encapsulates a mid-front section of the drill rod and provides a centralized bearing location capable of high radial and thrust forces combined. The peened radial holes of the drill rod are longitudinally aligned with the internal radial pressure fluid distribution groove of the fluid bearing bush.
Pressure fluid is proportionally distributed—through radial holes in the drill shaft, connecting to an axial port through to the front cutting rotor, creating back pressure to distribute to the annulus area between the outside diameter of the drill rod and the inside diameter of the fluid bush. This is achieved by high helix angle, low depth multi-start grooves machined on the inside of the fluid bush from the front edge of the distribution groove to the front face of the fluid bush (eg triple-start, 20 mm pitch 0.5 mm deep grooves with 1.5 mm concave radius).
This pressure fluid is then channelled to a helical spiral groove on the front face of the bush (eg single 10 mm pitch continuously decreasing right-hand 0.5 mm deep face groove with 1.5 mm concave radius). This channelling effect essentially hydrostatically separates the shaft from the bush both radially and axially, to counteract steering and thrust face forces. The relationship is linearly proportional in that the higher the load, the harder the faces act against one another, providing a greater hydrostatic seal, which in turn acts to repel the two components.
Hence we have a bearing, which mechanically transfers loads, provides a pressure fluid swivel, and continually lubricates and cools itself. This method allows a very strong shaft construction with minimal stress riser points, excellent radial and axial bearing loads, excellent impact resistance, excellent pressure fluid conveyance, minimal assembly and maintenance costs, and is field replaceable.
The position of the target at the extreme front of the drill head ultimately enhances the drills ability to be extremely accurate and responsive to positional changes. The use of high-pressure fluids out of the drill face allows for enhanced tooling life whilst also giving the ability to flush tacky ground. The ability to run drill fluids at the cutting face creates greater efficiencies within cutting and assists our abilities through varied ground conditions. Front bearing combination of high load axial and thrust bearing with a high-pressure fluid and integrated lubrication system.
The drill rods are inserted and connected consecutively with the thrust module to allow bore hole progression while maintaining drill string, vacuum, air channel, hydraulic, pressure and data line connection. The drill rod transmits torque from the rotation unit mounted on the thrust module to the drill head at the bore face via a drill rod and connected intermediate drill rods. The drill rod also transmits thrust from the rotation unit mounted on the thrust module to the drill head at the bore face via a vacuum tube.
The prior art was to have the vacuum tube section aligned longitudinally with the drill string, situated below it, generally to rest on the invert of the borehole. This allows cutting spoil extraction by vacuum.
The vacuum tube has bearing bushes mounted at each end along the drill rod and connected intermediate drill rods axis to retain the drill rod and connected intermediate drill rods, and male and female cleats at each end for connection by means of a manual pin inserted to two holes either vertically or horizontally aligned. The drill string is exposed, causing possible operator injury from the rotating shaft. The connection method with manual pin insertion is tedious, and pin extraction after bore completion is difficult.
The manual connection method required clearance to allow manual connection. This clearance between subsequent drill rods allows each rod to rotate slightly about its axis as a result of drill string rotational torque. This rotation, possibly only 1 degree per rod, extrapolates the error the further the borehole. Final error over a 100 m bore could be a 50-degree rotation, causing an inaccurate target position relative to the start point. This target position is then potentially out by up to 100 mm.
The borehole is not peripherally supported, causing ground collapse in certain ground conditions, thereby blocking laser and target view, and halting drilling operation. The bearings are directly under the laser position, causing hot sections at each end of the drill rod and a cooler section between the bearings. These hot-cold transitions cause consecutive and culminating laser refraction, leading to an inaccurate borehole.
The microtunnelling system uses a casing mounted on the drill rod that includes at least two axially extending cavities or bores wherein liquid is axially transported along one of said axially extending cavities or bores under pressure to the drill head to assist drilling and resulting slurry is vacuum returned along the other of said axially extending cavities or bores. However as drill rods are fully enclosed, and slightly smaller than the drill head diameter allowing the microtunnelling machine to be effective in collapsing ground conditions, under water table, soft or hard ground. The vacuum or slurry spoil extraction volume within the drill rod provides minimum restriction to increase productivity and length of lines achievable. With all moving components enclosed, the drill rod is safer to use.
Rotation within vacuum or slurry spoil eliminates heat from bearings, minimizing laser distortion and wear and tear to the equipment. Enclosed laser space for stability of beam. Provides airflow to equalize temperature and humidity, more accurate operation. Automatic alignment system speeds and simplifies operation. Automatic clamping system, for positive joining, withstands full load in both forward and reverse directions. Clamping system maintains strong sealing of vacuum. Fully encapsulated hose and dataline pocket, protecting sensitive data and pressure lines.
The pullback extraction reamer is used to increase the size of a microtunnelled bore hole. This is advantageous for operators as one size microtunnelling drill head and drill rods can be used in conjunction with a pullback extraction reamer in various bore sizes, while maintaining good productivity. Once the drill head reaches the reception shaft, the drill head is removed from the end of the drill rod and replaced by the pullback extraction reamer. The product pipe to be installed can be coupled to the pipe pullback adaptor mounted on the rear. Drilling is now commenced in reverse, or pullback mode. The drill string is coupled to a drive spur gear that rotates three planetary gears fixedly mounted to the vacuum thrust plate. The spur gears are meshed inside an internal ring gear that is fixed to the cutter hub, allowing the cutter hub to rotate at a lower speed but higher torque than its input drive. The cutter hub is mounted to the pipe pullback adaptor by way of thrust and radial bearings. This embodiment allows the drill rod and pullback pipe to remain rotatably fixed and the reamer cutter hub can rotate about the longitudinal axis at a greater torque. The cutter hub is typically concave within its cutting face, so that as it is pulled back through the ground, slurry and spoil are offered to the vacuum or slurry channel entrance for evacuation.
It should be understood that the above description is of a preferred embodiment and included as illustration only. It is not limiting of the invention. Clearly a person skilled in the art without any inventiveness would understand variations of the microtunnelling system and apparatus and such variations are included within the scope of this invention as defined in the following claims.
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Senior Bharatiya Janata Party leader Subramaniam Swamy said here on Saturday that the country had accepted, whether one likes it or not, that Narendra Modi would be India's next Prime Minister. He cited an English magazine as expressing the opinion that the people of India had decided to make Mr. Modi the next Prime Minister but in the magazine's opinion, Mr. Modi should not be the Prime Minister.
"Why this reluctance?" Dr. Swamy asked and answered the question by claiming that the arrival of Mr. Modi as Prime Minister would make India intellectually free of the West. Dependence on foreign ideologies, including India's dependence on the Soviet model of development, had proved disastrous for the country, he said at a function organised in Tripunithura.
Keywords: Subramaniam Swamy, BJP, Narendra Modi


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Juventus goalkeeper Gigi Buffon feels Italy are in good shape after their draw with Germany.
The Azzurri are in London for Monday's test with Nigeria, who qualified for the World Cup today.
"There are certainly those who are at a more advanced stage than we are, but we are still in good shape," said Buffon in his Press conference.
"Unlike others, we have the quality of knowing when and how to suffer under pressure. When there is a complicated situation, we tend to do very well indeed.
"Cesare Prandelli is right when he says we mustn't ask for the moon, that we are not the strongest team in the world.
"We've got to go into the World Cup expecting the same as we did before Euro 2012 and the Confederations Cup.
"That means good performances, often hand in hand with good results, which isn't something to be sniffed at.
"However, it's not easy to say what the real Italy are like now. We are animals who belong in competition."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball


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Grady PTSA
Welcome to the Grady High School PTSA
Welcome to the Grady High School PTSA
The Grady High School Parent Teacher Student Association (PTSA) serves as the common point of support among the school's most important stakeholders – our students, parents and teachers.
Our goals include:
· Enhancing the educational experience for all students
· Empowering parents and guardians to be a strong voice for their children
· Encouraging and supporting our teachers
Accomplishing our goals depends upon the generous support of our school community members' time, talents and financial support. Every parent, teacher and student is urged to join Grady PTSA. Your $5 annual dues and additional donations are an important part of our operating budget. We raise additional funds through fundraisers, including events that support the variety of clubs and extracurricular activities that make Grady High School exceptional.
Volunteering with PTSA
Committees and special events need lots of support to be successful! Whether you have just a few hours to spare or a great idea to help improve an aspect of our community, we want to give you a place in our Grady High School cadre of volunteers. Visit our PTSA Committee Descriptions page to learn more.
Meet the PTSA 2014-15 Executive Committee
President: Christa Martin, email@example.com
Vice President, Communications: Larissa Bradburn, firstname.lastname@example.com
Vice President, Family Engagement: Erlese Caruth, firstname.lastname@example.com
Vice President, Fundraising & Special Events: OPEN
Vice President, Operations & School Support: Mary Lynn Realff, email@example.com
Secretary: Laura Kish, firstname.lastname@example.com
Treasurer: Melissa Kriest, firstname.lastname@example.com
Appointed Parliamentarian: Abby Martin, email@example.com


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The past is a source of knowledge, and the future is a source of hope.
S. Ambrose (1936-2002) Ernest Mueller
Preserved samples from medical, forensic, museum and other archival collections represent a rich source of study material, much of it meticulously collected, characterized and preserved through many decades of work by experts in the field. While the majority of this material was originally collected and preserved with morphological studies in mind, the advent of molecular genetic techniques have caused many scientist to eye archival collections as a precious source of biological data.
There are many preservation methods that have been applied to tissues, including alcohol preservation, formalin treatment, freezing and sequestration in waxes and other materials. Molecular diagnostic research groups began working with formalin-fixed paraffin embedded (FFPE) tissues in the late 1980s and early 1990s .1,2 Their results showed some early successes. Unfortunately, many of the preservation methods used in the past, of which formalin treatment has been the most popular, have been found to degrade DNA and RNA. Common techniques of extraction and molecular analysis that worked well with fresh and frozen samples were found to work poorly on samples stored in unbuffered formalin or FFPE preserved samples. This so-called formalin problem appears to be worse for samples that have been stored over longer periods. It has been hypothesized that while the immediate adducts created by formalin are reversible, the slower reactions are irreversible and leave nucleic acids unsuitable for PCR, hybridization and other molecular biology methods.3,4 Strand breaks or formaldehyde lesions in the DNA are equally able to ruin amplification.
Researchers have attempted to characterize the effect of long-term formaldehyde
preservation on DNA. While the conditions of f


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Image copyright:
Copyright expired - public domain
This image is in the Public Domain
|ID number
|Object type
|Black & white
|Hurley, James Francis (Frank) (Photographer)
|Place made
|British Mandate of Palestine: Palestine, Gaza
|Date made
|19 November 1940
|Physical description
|Black & white
Ah .. that's better. Now for a little fresh air, and beauty is once more unadorned. Respirators may be an important part of military equipment but really, a girl doesn't look her best with her head in a bag. The women practicing respirator drill are, left to right: VFX8394 Sister Lilian Elaine McPhail (died of injuries in a car crash at El Kantara on 1 September 1941, whilst attached to 2/2nd AGH); VX17199 Sister Gladys Elva Mole; VFX382 Sister Margaret Blythe Cuthbert; A. E. Whiteside; VX374 Margaret Elizabeth Josephs; and VFX374 senior nursing sister Dorothy Vines; all of the 2/1st Casualty Clearing Station.


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GOOD DRIVING SHOP TRUCK, V8, AUTO, PWR STEERING, PWR DISC BRAKES. This truck runs strong and shifts great, ready to drive to work daily.... More
All Steel F100 Resto-Mod With A Straight, Solid Body And Stunning Raven Black Exterior Finish. Mustang II Independent Front Suspension With Power Rack And Pinion Steering.... More


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View all artworks by Christian Rolland
About this artwork: fusain 50x65cm sur papier 200gr
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I need whey protein. Optimum Nutrition Gold Standard or Muscle Milk?
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New User
Join Date: Sep 2009
Posts: 10
I suggest that you stick with ON Gold Standard, and stay away from Muscle Milk. ON Nutrition is 24 grams protein at between 110-130 calories a serving (one scoop), depending on what flavor you get. Meanwhile Muscle Milk is 35 g protein and 300 calories, but that is a two scoop serving. Also muscle milk is a protein mixture where as ON Gold standard is whey only.
Reasons to not use Muscle Milk:
1) Its a blend of protein and other substances that help body builders more then other athletes, 300 calories are a lot.
2) For athletes anymore then 30 grams of protein at a time for non-bodybuilders is usually overkill, if you really want to use muscle milk you could first try just using half a serving. (1 scoop)
3) One ingredient in Muscle Milk (glycocyamine) has been tied in with increasing homocysteine levels, which is a marker for cardiovascular disease.
Mixing in Water vs. Milk:
Post workout I would suggest immediately after your last lift drinking your whey with water and maybe having a banana as well. When mixing with water there is faster absorption into the body while milk causes slower absorption times. Mixing with milk at other times of the day for slower absorption is ideal in various situations.
Whey and Casein Protein:
Although not in the original post there seems to be some misconception on this through out the topic. Whey protein is ideal for pre, intra, and post workout. If you taking protein during any of these times, its the fastest absorbing protein possible, making it ideal for these times of exercise when your muscles need protein the most. Casein is a much slower digesting protein; this is because it takes the body much longer to break the proteins down vs whey. Casein is usually taken before bed to help with muscle recovery while you sleep, as it will work longer into the night. If interested in taking a Casein supplement I would suggest Optimum 100% Casein Protein. Just note that is a much denser powder and when you shake up pure Casein protein supplements it becomes more of a sludge/yogurt type consistency.
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Our Bureau
Kolkata, Jan. 6
PUNJAB & Sind Bank has announced the launch of eight-to-eight banking at select branches in West Bengal from January 16.
According to a communication received from the bank's zonal office here, Punjab & Sind Bank's Bansdroni branch and its soon-to-be-launched branch at Salt Lake would be open from 8 a.m. to 8 p.m. seven days a week. The bank would also convert extension counters at Behala, Birati, Garia and Sahaganj into full-fledged branches.
BoB launches Nagrik Bachat KhataMeanwhile, as an extension of its customer-centric initiatives, Bank of Baroda has launched the Nagrik Bachat Khata, a new Savings Bank product for the general public.
According to a bank communication, anyone can open a SB account with an initial deposit amount of Rs 50 only. No service charge would be levied even if the balance in the account goes down to below Rs 50. People maintaining such accounts can withdraw money through withdrawal slips. The interest rate, periodicity and method of application of interest would be similar to usual SB account.
It has been stated that the product has been designed to provide banking facilities to common people, especially wage earners, workers in the unorganised sectors, housewives, students, etc. It would be available at all metros, urban, semi-urban and rural centres of the bank.


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Video: Penn State men's soccer team hosts third annual Mack Brady Clinic
The Penn State men's soccer team recently held the third annual Mack Brady Clinic, and it was a ringing success.
Register to run in our Big 10K in Chicago on July 25 & stay for the ultimate post-race Fan Fest & Tailgate party.
The Penn State men's soccer team recently held the third annual Mack Brady Clinic, and it was a ringing success.
Yesterday, John William McKenzie "Mack" Brady would have been 11 years old.
Find out more about: Bob Warming, BTN LiveBIG, LiveBIG: Penn State, Mack Brady Fund, Mack Brady Memorial Clinic
Ohio State men's soccer team advanced past Akron in a 1-1 double overtime tie after a 15-round (13-12, OSU wins) finish on penalty kicks. Get the details inside!
Six Big Ten men's soccer teams earned berths to the 2014 NCAA Division I Men's Soccer Championship, it was announced Monday.
No. 1 Maryland won its first Big Ten Men's Soccer Tournament Championship after defeating No. 6 Indiana, 2-1, in Sunday's championship game.
It's semifinal time! No. 2 seed Ohio State fell to No. 6 seed Indiana 2-1 in the first semifinal game, while No. 1 seed Maryland defeated No. 5 seed Michigan State on penalty kicks in the second semifinal matchup.
BTN Soccer Report unveiled the 2014 All-Big Ten Men's Soccer teams and individual honors Wednesday night. See all of the honorees below.
Find out more about: BTN Soccer Report


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Interesting Sailboats
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Re: Salona Yachts
Originally Posted by
Regarding maintaining the hulls of the previous boats (37 ans 34 and 42) on the 38, 35 and 41, that hull design is 7 or 8 years old. They modified the transoms, keels and rudders as well as the cabins. It talked with them about it and they said, with some reason, that the previous models are winning races and that some new buyers had the previous models and what they want is the same type of boat but faster with a better interior, that means lighter and with better keel and ruder design since the hull is still up to date.
I guess you are confusing hulls designed to perform better on certain conditions with out dated hulls. I guess you are talking about hulls with all beam brought aft, like on the Dehler. That will improve downwind control and stability (to an extent) but it will be detrimental for upwind performance and pointing ability. It all has to do with the balance on the boat in what regards performance.
See what I mean? Of course these are only 2D shapes but I guess that they are enough to give you a general idea.
Hi Paulo
I know that the older hulls perform very well and like you i also prefer a more moderate beam. To be honest you have educated me over many posts to understand the advantages and disadvantages of a wider beam taken all the way back versus a more moderate beam. If I were in the market for a new boat, then I would also look for a moderate beam with a moderate freeboard, fine lines of entry with a forefoot that is not too shallow and a hull with some rocker. What I find missing from these older hulls is a chine which assists form stability as you know but which I like the look of. Also I find that in the Salona 35 that the coach roof is too rounded for my liking. A more modern approach would be to have it flatter. Also, i like the option of a bathing platfrom with integrated ladder for chilling at thatbanchorage after you have arrived befiore everyone else
What I am on about is aesthetics more than anything else.
A brilliant boat though and like the Dehler, if it found its way onto my berth, I would be one happy sailor.
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Cabin Notes: at sea The Adventures of S/V Wild Haggis: 2011 J. Privette
by jprivette
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CABIN NOTES: Life on the Water
Published December 06, 2012
Blackwater and Blue
Published December 01, 2012
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Leisure guests love our pet friendly hotel's location in South Winnipeg because we're close to the Forks National Historic Site, the Royal Canadian Mint, Fort Whyte Alive, the Assiniboine Park & Zoo and shopping at the St. Vital Centre or the Kenaston and McGillivray Box Stores. Sports fans enjoy the nearby soccer complex and the Pan Am Pool.
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Mon-Fri: 7am-1am EST / Sat-Sun: 7am-11pm EST
ApplianceWhirlpool Washer
Level of DifficultyA Bit Difficult
Time to do repair1- 2 hours
Age of Appliance1 - 4 years
NutdriverScrew drivers
18 out of 20 people found this instruction helpful
Although your website mentioned removing 2 screws to open the control panel, it took a while to realize there were 2 screws and 2 hex nut screws to open it followed by 15 minutes of efforts to release the control panel from the top of the washer by sliding it forward. After that it took 2 minutes to replace the switch; the web comment of keeping the lid open was helpful. Unfortunately, the lid switch was not the problem; replacing the timer did the trick, was very easy with the control panel already opened and required the purchase of 1/4 and 3/16 hex nut drivers. Parts, shipping and tools cost $110 but the success of the repair with your parts and advice was priceless.
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Part Number: PS886960
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The PartSelect logo is a Registered Trademark of Atlantic Laundry Centres, Ltd.
Copyright © 1999-2015 , Eldis Group Partnership. All rights reserved.


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Hunter's Green Country Club
Main Number: 813.973.1000
Prospective Members
Ann Pereira
Membership Director
813.973.1000 x: 237
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Club benefits:
- Enjoyment of the clubhouse facilities for breakfast, lunch and dinner
- Use of the Club's private dining rooms for private parties and for business purposes
- Invitation to all Club social events
- Use of the aquatic center
Network benefits:
- Tampa Bay Society privileges
- Access to a network of more than 200 private clubs and resorts
- Discounts and privileges with renowned hotels, restaurants and entertainment venues
- A subscription to Private Clubs magazine
Questions? Check with your membership office or click here to contact us and find out more.