Investigation of physical and mechanical properties of salt rocks of Starobinsky deposit

Abstract

Physical and mechanical properties of salt rocks were investigated in laboratory and underground conditions with respect to the problems of rock mechanics – calculation of rational parameters of room-and-pillar mining and identification of patterns of rock pressure manifestations. These tasks are of great importance in mining the Starobinsk potash deposit, represented by several potash seams, occurring at a depth of 420–640 m from the surface. At the deposit, two potash seams are mined with thicknesses of 1.8–4.0 m and 4.5–7.0 m, occurring respectively at depths of 420 and 580 m.

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