【摘要】 深部开采面临着错综复杂的环境和技术难题，探究北山深部花岗岩的破坏过程，通常使用的传统意义的声发射描述因数据分布的过于杂乱而导致辨识难度增加且无法精确地探知其内部关联。通过建立三维裂隙连通逾渗模型，能够实现裂隙的可视化精确描述。结果表明：以声发射能量数为损伤变量，采用ANSYS建立出考虑损伤的模型，并植入FLAC3D数值模拟软件中，模拟出花岗岩三轴条件下的全过程破坏情况，将破坏过程分为4个阶段：裂隙闭合阶段，线弹性变形阶段，裂隙萌生发育阶段，残余应力阶段。不同围压情况下的峰值应力与实验相统一，证明了损伤模型的有效性，为未来的岩石破坏研究提供参考。更多还原

【Abstract】 In order to investigate the damage process of granite in deep underground construction, the traditional acoustic emission description is usually used because the data distribution is too heterogeneous, which makes the identification difficult and the internal correlation cannot be accurately detected. By establishing a three-dimensional fracture connectivity model, the fractures can be visualized and accurately describe. The damage model consider-ing the acoustic emission energy number as the damage variable is established by ANSYS and implanted in FLAC3Dnumerical simulation software to simulate the whole process of granite damage under triaxial conditions. The peak stresses under different surrounding pressure cases are unified with the experiment, which proves the validity of the damage model and provides a reference for future rock damage studies.更多还原