基于岩石真三轴应力状态下的数值模拟研究

Study on Numerical Simulation of Rock under True Triaxial Stress

研究真三轴应力状态下岩石的变形破坏过程对于揭示地下工程岩体灾变机理具有十分重要的理论意义和指导价值。基于岩石真三轴应力状态下的实验结果,运用颗粒流离散元程序PFC^(3D)建立了岩石真三轴数值计算模型,模拟真三轴加载过程中岩石的损伤与破裂演化过程,分析了真三轴状态下岩石的损伤、破坏特征。

The study of the deformation and failure process of rock under the true three axis stress condition is of great theoretical significance and guiding value for revealing the mechanism of rock failure in underground engineering. Based on the experimental results of the true three-axis stress state of the rock,use the particle flow discrete element program PFC3D establish the numerical simulation model of the true triaxial axis of the rock, simulating the process of rock damage and rupture during the real triaxial loading, analyzing the failure and damage characteristics of rock under true triaxial state.