摘要
本文针对含断续节理脆性岩体的结构特征及力学性状,讨论了用有限单元法分析该类岩体断裂强度所遇到的若干问题,并介绍了相应的处理方法和有限元程序。文中还介绍了应用该程序对含一组断续节理石膏模型试验进行模拟计算的成果,以数值分析方法论证了该类岩体的压剪断裂强度特性。
In accordence with the structural characteristics and the mechanical beha- vior of rock mass with intermittent joints,this paper discuses a number of the problems in the analysis of crack strength of the rock mass by means of the method of finite element,and at the same time,presents the correspo- ding processing method and program of finite element. Based on the resuts of numerical analysis for gypsum model with a group of intermittent joints using the program,the properties of compressive shear strength of this class of rock mass is also provad in the paper.
基金
国家"七.五"科技攻关项目基金资助课题
关键词
断续节理
有限单元法
断裂强度
intermittent joints
finite element method
fracture mechanics
crack strength
gypsum model
