压剪应力作用下多裂隙岩体的力学特性──断裂损伤演化方程及试验验证  

Multi-crack Rock Mass Mechanical Character under the State of Compression-shearing-Fracture and Damage Evolution and Testing Verification

作　　者：徐靖南[1] 朱维申[1] 白世伟[1] 

机构地区：[1]中国科学院武汉岩土力学研究所,武汉水利电力大学

出　　处：《岩土力学》1994年第2期1-12,共12页Rock and Soil Mechanics

摘　　要：首先对多裂隙岩体的损伤加以定义，在建立裂纹扩展时产生等效次生裂纹模型的基础上，对多裂隙岩体受荷后发生断裂损伤时其演化方程进行探讨，最后通过大型岩体相似模型试验对理论计算结果分析验证，理论计算与试验结果吻合较好。In this paper,the damage tensor of multi-crack rock mass is defined.The idea is proposed independently that the equivalent sub-cracks appear while a crack develops.The evolution equation of multi-crack rock mass is studied.Finally,the theory proposed in this paper is verified through the test of large rock mass similarity model,whose resultS coincide well with the theoretical analysis.

关 键 词：裂隙 岩体 断裂 演化方程 岩石力学 

分 类 号：TU452[建筑科学—岩土工程]