On one approach in underground mining modeling
Аннотация
At solving of geomechanics problems it is necessary to study the features of rock mass and assess the degree of their disequilibrium. It is necessary to predict the mechanical behavior of the massif during mining excavation. Mathematical modeling of rock continua with taking into account the nonequilibrium and non-stationary processes of deformation and fracturing is a vital problem. The stress state of the rock mass is usually a compression state. Since rocks resist stretching much worse than compression, tensile stresses (when they appear) are usually very important, and therefore, when analyzing the results of solutions, special attention is paid to stretch zones. At mining operating in rock continua, a discontinuity and rupture of natural stress-strain state occur. Results of the investigation of geomechanical processes in the vicinity of underground mining are considered in this issue. There made an analysis of the solution to the problem of stresses distribution in the vicinity of horizontal excavation covered in elastic-plastic, homogeneous, and isotropic rock continua.