Rock pressure manifestation around underground workings in potassium minesin the case of a nonhydrostatic initial stressed state of the rock mass

The Finite-element method is used to solve problems about the stressed-stra ined state and stability of salt-rocks in the vicinity of mine workings of different purposes taking account of features of the deformation and failur e of salts in time for the mining-geological and mining-technical condition s of the potassium mines of the Verkhnekamsk deposit of potassium and potas sium-magnesium salts in the case of nonhydrostatic initial stressed state o f the rock mass. The effect of tectonic stresses on the processes of deform ation and failure of rocks in time constituting the interlayer and intercha mber pillars is established.