中文摘要：

进一步分析了第1部分中提出的岩石细观统计渗流模型。讨论了由细观统计渗流模型得到岩石宏观渗透系数的方法。为了利用细观统计渗流模型对岩石损伤破坏过程中的渗透性演化进行分析，引入了各向异性损伤模型，用以对岩石的细观损伤和裂纹的扩展过程进行力学分析，并讨论了细观统计渗流模型与各向异性损伤模型的联合分析方法。对Lacdu Bonnet花岗岩损伤过程中的渗透性演化进行了计算分析和验证。结果表明。细观统计渗流模型可以较精确地描述裂纹充分贯通前岩石渗透性的演化。

英文摘要：

Further analyses are performed on the statistical penetration meso-model proposed by authors in part one. Firstly, method for calculating the macroscopic permeability using statistical penetration meso-model is discussed. Then in order to analyze the evolution of permeability in the process of rock failure, anisotropic damage model is introduced to perform the mechanical analysis, and the coupling analysis method using statistical penetration meso-model and anisotropic damage model is also discussed. Finally, permeability variation of Lac du Bonnet granite is analyzed using the methods above, and the theoretical results by statistical penetration meso-model perfectly agree with that measured in situ before rock cracks fully linking up.