摘要
以某有色金属矿山巷道为例 ,给出了高应力软岩的定义 ,论述了高应力软岩的特征、形成条件以及高应力软岩巷道围岩的变形破坏特征和类型 ,分析了巷道开挖前后地应力状态的变化及其对围岩变形破坏的影响 。
The high stressed soft rock is defined. Take the roadways of a certain famous nonferrous metal mine field as an example, the characteristics and the formation conditions of high stressed soft rock, the features and the types of deformation and failure of surrounding rocks formed by the high stressed soft rock are discussed. The changes of rock stress before and after excavation of tunnels and their effects on deformation and failure of surrounding rocks are analysed. Based on the alteration of surrounding pressure and the strength of engineering rock mass, the mechanism of deformation and failure of surrounding rocks of roadways constructed in the high stressed soft rock is studied.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2000年第6期726-730,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金资助项目 ( 4 96 72 16 6 )
关键词
高应力软岩
巷道围岩
变形破坏机制
工程岩体
high stressed soft rock, surrounding rock of mine roadway, mechanism of deformation and failure, engineering rock mass
