Rock Pressure Manifestation Around Underground Workings in Potassium Mines in Case of Non-hydrostatical Initial Stressed State of Massif

摘要

Problems about the stressed-strained stateand stability of salt-rocks in the vicinity of mineworkings of different purposes with allowance for thepeculiarities of deformation and destruction of saltsin time for mining-geological and mining-technicalconditions of potassium mines of the Verkhnekamenskdeposit of potassium and potassiummagnesium salts incase of non-hydrostatic initial stressed state of massifhave been solved by finite elements method. An influenceof tectonic stresses on the processes of deformation anddestruction of rocks in time to be constituted theinterseam and interchamber pillars has been determined.