VOLUMETRIC STRESS-STRAIN STATE OF VORKUTINSKAYA-ZAPOLYARNAYA MINE FIELD ACCORDING TO GEOMECHANICAL MODELING DATA
3D model of the geomechanical space of Vorkutinskaya-Zapolyarnaya Mine is constructed with consideration for strain-strength rock properties and variations in worked out space shape under panel coal mining. The model is realized by the finite element method with the use of the original code adapted for multi-processor clusters. Multiparameter analysis of the stress-strain state of the coal-rock mass is performed based on laboratory data on relationship of elastic wave velocities Vp and Vs vs. stresses. The necessary-for-tomography maps of spatial Vp distribution in a coal seam at different mining stages are made.