The methodology and results of the numerical estimation of the stress-strain state (SSS) of the undermined rock mass under the design parameters of mining operations at the First Berezniki potash mine are considered. The geological structure of the rock mass and the propensity of salt rocks to creep and relaxation are taken into account.
The results of field observations of displacements of salt-bearing rocks of the Charskaya Formation in the vicinity of mine workings at the underground Internationalny mine, as well as tests of rock samples are presented. The causes of negative deformation processes in the mine workings support are outlined.
