某电厂岩质高边坡的变形破坏模式分析  

Analysis of Deformation and Failure Mode of High Rock Slope in a Power Plant

作　　者：胡昕[1] 柯学[1] 牛志强[1] 郭葆[1] 郑达[2] 

机构地区：[1]中国电力工程顾问集团西北电力设计院,陕西西安710032 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059

出　　处：《电力勘测设计》2012年第2期1-4,共4页Electric Power Survey & Design

摘　　要：边坡变形破坏模式分析是边坡稳定性评价和支护设计最为重要的环节之一。从分析工程地质条件和已有的变形破坏现象入手,探讨了某电厂岩质高边坡的变形破坏模式和开挖后的变形破坏特征。研究表明:在开挖条件下,由于卸荷回弹导致坡体内部原生结构面张开或出现新的拉裂面或遇到节理裂隙非常发育的位置,可能发生以似层面为控制性的顺层滑移及小块体失稳。It is a key link of analysis of slope stability and design of slope support to analyze deformation and failure mode of slope.The engineering geologic conditions,deformation and failure phenomenon of the high rock slope in a power plant are firstly analyzed.And then the modes and characteristics of deformation and failure of the slope before and after excavation are discussed.The results indicate that if the primary structural planes of the slope open or the new tension crack surfaces occur because of the rebound under unloading or many fissures and cracks are meted with,the bedding glide and little block failure likely arise under the control of the bedding plane during the excavating process.

关 键 词：岩质高边坡 变形破坏模式 稳定性分析 顺层滑移 块体失稳 

分 类 号：P642[天文地球—工程地质学]