摘要
提出的节理岩体剪切强度准则,考虑了节理面、岩桥提供的强度分量和相邻节理面形成的起伏角提供的强度分量。讨论了节理面和节理岩体发生剪切破坏时某些关键应力状态必须满足的物理约束条件。此外,强度准则中的参数可以是随机变量,所以可以用于随机模型中的破坏概率分析和工程的风险分析。
A shear strength criterion of jointed rock masses, taking the contribution of joints, the contribution of rock bridges and the contribution of undutant angle made by adjacent joints into account, is developed. Further, some phsical constrants at extreme stress levels are discussed during the shear failure process of joints and jointed rock masses. Moreover, the parameters of the criterion may he random variables, so it can be used to analyze the failure probability of random models and the risk of rock engineerings.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1990年第1期1-7,共7页
Journal of University of Science and Technology Beijing
关键词
岩石
节理面
岩桥
错距
岩体
强度
rock joint, rock bridge, rock offset, rock mass strength
