Summary Of Numerical Simulation Studies On Elastic-Plastic Failure Process Of Engineering Rock Masses

As the basic building material and foundation or environment of rock engineering, mechanically, the rock-masses differs from other engineering materials in its anisotropy, non-continuity and multi-crack. So the mechanical properties, parameters and fracture patterns of rock specimen from laboratory, cannot be applied in engineering rock-masses directly.Considering of properties of rock-masses, this paper develops nonlinear numerical method in the rock failure process based on elastic-plastic theory, with numerical simulation program for anisotropy material elastic-plastic failure. We do the numerical simulation of different rock-masses elastic-plastic failure processes, such as rock specimen, laneway and pillars in the mine, and in the meantime, the effects of factors, such as side force, shape of hole, material heterogeneity, to the utmost loading of rock are analyzed numerically.