Numerical Study on Mechanism of Zonal Disintegration in Deep Rock Mass with Joints

Abstract

Based on this reality that surrounding rocks of deep undergrounds engineering repeatedly bear geological force and excavation disturbance, the integrity and mechanical properties were weakened, it is thought that the stress-strain relation submits to the post-peak softening joint model, and then considering other parameters, such as joints, initial geostress, strength, and deformation that affecting the rock mass property. A simulation scheme is designed, and the