中文摘要：

结合岩石全应力应变过程中渗透性变化特点,综合已有的各种岩体渗透系数变化关系,根据岩体弹塑性状态的不同,分别建立渗透系数随应力和损伤变化的函数,给出了更为符合实际情况的渗透系数动态演化模型,同时考虑岩体塑性损伤本构,建立塑性损伤流固耦合分析模型,为岩体流固全耦合分析提供了一种有效的途径。利用ABAQUS的二次开发接口编制了相应的USDFLD用户子程序,应用于某引水隧洞围岩的稳定性分析中,得到一些有益的结论。

英文摘要：

With rock permeability changes of the whole stress and strain process,integrating the existing permeability coefficient relationship of a variety of rocks,according to different rock elastic-plastic states,the permeability coefficient function with the change of stress and damage is established,a more realistic dynamic evolution model of permeability coefficient is established by taking into account the rock plastic damage constitutive.The plastic damage hydro-mechanical coupling model is also established for rock fully coupled analysis.ABAQUS second development interface composing the corresponding USDFLD user subroutines is applied to the stability analysis of diversion tunnel surrounding.