Studies on elastic-plastic failure process analysis of rock by means of numerical simulation
岩石弹塑性破裂过程的数值模拟研究

The thesis analyzes the limitations of the traditional FEM in solving engineering problems of the anisotropic and discontinuous rock-like materials with dispersing and random material parameters distribution, and sets forth the study method in which the anisotropy of rock-like material is described with mechanical properties distribution, and the material parameters conforming to Weibull distribution law are assigned to the cell in rock construction via. Monte Carlo simulation method, and then the numerical simulation is processed by computer. With the help of the software, REPFPA, which is of strong visibility and developed by the authors of this article, "Rock Elastic-Plastic Failure Process Analysis", on the platform of FORTRAN Power Station 4.0 under MS Windows95, valuable experimental results are obtained by using the method in which the elastic-plastic failure process of typical rock specimen and tunnel model are studied with numerical simulation. The method proves to be an effective one in the study of rock elastic-plastic failure process, in which the randomly assigned material parameters are introduced into rock-like materials elastic-plastic failure process analysis, and the numerical simulation is carried out by computer.