压剪应力条件下各向异性岩石损伤本构模型和渗流模型(Ⅱ):三轴压缩应力状态下理论模型及算例  

Constitutive model and seepage model of anisotropic rock in compression with micromechanics (Ⅱ):models of rock under triaxial compression and an example of the models

作　　者：张嘉翔[1] 韦立德[2] 陈从新[2] 杨春和[3] 

机构地区：[1]中交第二公路勘竂设计院,武汉430056 [2]中国科学院武汉岩土力学研究所环境岩土工程重点实验室,武汉430071 [3]中国科学院岩土力学重点实验室,武汉430071

出　　处：《岩土力学》2007年第2期241-246,共6页Rock and Soil Mechanics

基　　金：国家重点基础研究发展规划项目(973)(NO.2002CB412704);国家自然科学基金项目(No.50239070)资助

摘　　要：在文[1]的基础上,推导了所建立本构模型和渗流模型的三轴压缩情况下的方程,并给出了1个算例。结果表明,建立的本构模型能够反映微裂纹闭合摩擦滑移、微裂纹发生自相似扩展和微裂纹发生弯折扩展对变形的影响;建立的本构模型能够反映岩石剪胀特征;弯折微裂纹分支张开是使岩石渗流明显地增大原因。The equations of the theories in previous paper are deduced for rock under triaxial compression.An example of presented models is gived. The example shows that the constitutive model can reflect the mechanical properties caused by the frictional sliding, mode- Ⅱ self-similar growth and kinking of closed microcracks under compression and swelling distortion caused by sheafing. The opening of partial microcrack during kinking makes seepage increasing.

关 键 词：岩石力学 岩石 模型 各向异性 损伤 渗流 

分 类 号：TU45[建筑科学—岩土工程]