Alexandr S. Regularities of surface and the solid of slightly metamorphosed rock mass deformation when developing gently sloping coal seams

The thesis is devoted to the study and the establishment of complex patterns of surface and the solid of slightly metamorphosed rock mass deformation when developing gently sloping coal seams. It is established that the distribution of horizontal displacement and deformation depends on the depth of underworking, the direction of the working face movement, the stage of development of rheological processes and geometric parameters of zones of subsidence above the working face. Formation of the horizontal and vertical components of the displacement vector is influenced by various factors, which prevents the use of general principles of forecasting them. The mechanism of formation of horizontal displacement and deformation of undermined solid and geometric parameters of subsidence zones above moving working face is proposed. Method of prediction of displacement and deformation of the earth's surface and the rock mass, method of determining growth value of rock pressure at arbitrary points of high rock pressure zones are developed.