Based on SOC theory and BTW model, the damage evolvement and crack propagation rate are studied on instability and failure of rock. This presents a new approach to research the mesoscope evolvement law of rock failure.

• 基于自组织临界性理论及沙堆元胞自动机模型,对岩石失稳破坏过程中的损伤演化、裂纹扩展规律进行了探讨,从新的角度研究了岩石失稳破坏的细观演化规律。