Effects of intermediate principal stress on rock cavity stability

被引：4
|
作者：
Xiao-li Yang
Jin-feng Zou
Zhi-rong Sui
机构：
[1] Central South University,School of Civil and Architectural Engineering
来源：
Journal of Central South University of Technology | 2007年 / 14卷
关键词：
cavity stability; intermediate principal stress; stress solution; displacement;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The linear Mohr-Coulomb and nonlinear Hoek-Brown failure criteria, which neglect the effects of intermediate principal stress, are widely used in soil and rock engineering. However, much experimental data shows that the failure envelope relates to the intermediate principal stress. Employing the failure criterion and the generalized plastic potential function, the stability of rock cavity driven in an isotropic and homogeneous medium was investigated under the condition of plane strain considering the effects of intermediate principal stress. The closed-form solutions for stresses and displacement around a rock cavity were given in the elastic and plastic zones. Based on the closed-form solutions, the intermediate principal stress has an important effect on cavity stability.
引用
收藏
页码：165 / 169
页数：4
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