煤田地质与勘探2012，Vol.40Issue(4)：52-55,4.DOI:10.3969/j.issn.1001-1986.2012.04.012
基于广义Hoek-Brown准则的岩体等效强度
Research on equivalent strength rock mass based on generalized Hoek-Brown failure criterion
摘要
Abstract
In order to get the equivalent cohesion C and the friction angle φ of the rock mass conveniently, the paper used generalized Hoek-Brown failure criterion and RMR method of rock mass quality classification to calculate the C and φ with the different RMR, and fit the reduction factor of C and φ with RMR curve. The result shows that the reduction factor of C and φ can be calculated according to RMR while the rock mass quality classification is fairly good. The known C and φ of rock was reduced to obtain the C and φ of the rock mass. The C of the rock mass is positively linear related to uniaxial compressive rock strength, and the φ of rock mass is unchanged with the different uniaxial compressive rock strength. The reduction factors of C and φ are unchanged with the different uniaxial compressive rock strength, only concerned with the RMR.关键词
广义Hoek-Brown准则/RMR法/折减系数Key words
generalized Hoek-Brown failure criterion/ RMR method/ reduction factor分类
天文与地球科学引用本文复制引用
朱志明,章广成,朱娇燕,路辉..基于广义Hoek-Brown准则的岩体等效强度[J].煤田地质与勘探,2012,40(4):52-55,4.基金项目
国家自然科学基金项目(41102197) （41102197）
