三峡库区危岩稳定性分析  

Stability analysis of dangerous rock in the Three Gorges reservoir

作　　者：吴文雪[1] 刘耕[2] 

机构地区：[1]重庆交通学院河海建筑工程系,重庆400074 [2]四川省交通厅内河勘察规划设计院,四川成都610017

出　　处：《重庆交通学院学报》2003年第B12期112-116,共5页Journal of Chongqing Jiaotong University

摘　　要：危岩是三峡库区主要的地质灾害之一,是地层组合、地貌特征、水动力因素及地震等因素耦合异变的结果.按危岩体发生崩塌时可能的失稳破坏模式将危岩分为倾倒式危岩、滑塌式危岩、拉裂式危岩、鼓胀式危岩和错断式危岩5类.笔者根据三峡库区危岩破坏的主要荷载组合,运用极限平衡理论建立了危岩稳定性分析方法.该计算方法已经在三峡库区的危岩稳定性分析及治理工程中得到广泛应用.Dangerous rock is one of the typical g eologic disasters in the Three Gorge s reservoir,and is result from multi-factors in-teraction in disorder such as geologic strata ,geomorphologic characte ristic,fissure water pressure and e arthquake etc.On the basis of possible failure mode for dangerous rock to fracture,the authors divide dangerous rocks into five model,i.e.topple dangerous rock ,slide dangerous rock,stretch dange rous rock ,blow_up dangerous rock an d fracture dangerous rock in this pap er.According to main load compose to cause dangerous rock fracture in the region,the authors found stability analysis every model usin g limit equilibrium theory.The method have been gotten the exten sive application in stability analy sis and control in the region.

关 键 词：危岩 稳定性 类型 

分 类 号：TU441.35[建筑科学—岩土工程]