中文摘要：

基于连续介质损伤力学，利用岩石单轴压缩试验声发射累计振铃计数换算出岩石受压过程中的损伤变量，根据岩石微元强度服从Weibull分布，拟合出岩石损伤变量与累积应变的演化方程。从宏观层面，基于Lemaitre的应变等效假说和Mohr-Coulomb强度理论构建了岩石的变形模量、粘聚力和内摩擦角与损伤变量的数学表达式。在FLAC^3D平台上进行二次开发，实现了岩石力学参数及模型随累积应变的增加而逐渐劣化的动态损伤过程。模拟试验结果表明，基于岩石力学参数动态损伤修正的数值模拟能更好地反映岩石受压过程。

英文摘要：

On the basis of continuum damage mechanics, converting the damage variables in the process of rock compression through the AE cumulative counts of uniaxial compression test, this paper tries to simulate the evolution equation of rock damage variable and cumulative strain since the rock micro-unit strength obeys Weibull Distribution. At the macro level, on the basis of the strain equivalence hypothesis of Lemaitre and the Mohr-Coulomb strength theory, the paper also tries to establish the mathematical expression between modulus of deformation, cohesion, angle of internal friction and damage variables of rock. Moreover, the process of dynamic damage, which the rock mechanics parameters and model gradually deteriorate with the increase in the cumulative strain, is simulated by the second development with FLAC3D software. Finally the test results of this paper show that the compression process of rock can be better reflected by the numerical simulation based on dynamic damage corrections of rock mechanics.