 Where there is water or the anchors are embedded in a clayey sub-layer, the adherence of the anchor to the ground must be confirmed.The surface contained within the grid of the beam frame should also be protected, using geofabrics, in order to prevent erosion from removing the ground underlying the beam frame.This solution requires the installation of a series of micropiles that make up a three-dimensional grid, variably tilted and linked at the head by a rigid reinforced concrete mortise.