1887

### Abstract

The process of rock failure due to mining exploitation is correlated with variations of geophysical fields. Some models of brittle failure of rocks in the Alain strain conditions have been tested on the base of stresses, seismic waves velocities and gravity anomaly distributions in the vicinity of the cicrular opening . It was assumed that in zones of rock failure the rock fracturing developes . Non-elastic behaviour of the rockmass in these zones is approximated by some changes of elastic parameters according to different failure models. Interaction between shear crack and working face was tested for their different configurations. Empirical Hoeck & Brown strenght criterion and the threshold of 50 % of this criterion for the begining of the dilatancy process have been used .

/content/papers/10.3997/2214-4609.201410373
1992-06-01
2020-11-23
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