• 责任者：Zhu Zhiming (Faculty of Engineering ; China University of Geosciences ; Wuhan 430074 ; China) ; Zhang Guangcheng
• 刊名：Coal Geology & Exploration
• 出版年：2012
• 卷期：40(4)
• 关键词：岩体质量 ; rock mass quality ; 岩体强度 ; rock mass strength
• 页码：p.52-55
• 图表：1 illus., 5 tables, 11 refs.
• 分类号：1702
• issnNo：ISSN1001-1986
• isbnNo：CN61-1155/P

In order to get the equivalent cohesion C and the friction angle φ of the rock mass conveniently, this 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.