水布垭面板堆石坝下游边坡稳定分析  

Stability analysis for downstream slope of Shuibuya facing rockfill dam

作　　者：肖化文[1] 肖桃先[1] 

机构地区：[1]长江水利委员会设计院,湖北武汉430010

出　　处：《浙江水利科技》2002年第6期8-10,共3页Zhejiang Hydrotechnics

摘　　要：水布垭面板堆石坝是目前世界上在建同类坝中第一高坝(233m),地质勘探揭示,坝址河床砂卵砾石覆盖层含有砂砾粉土、粉质粘土透镜体。考虑到该工程的重要性及技术上的难度,也为了方便进一步优化设计,很有必要进行稳定计算,以验证砂卵砾石覆盖层对大坝尤其是下游坝坡的稳定影响,提出相应的工程处理措施,并对目前用于稳定分析的方法进行了讨论。Shuibuya concrete facing rockfill dam is the highest CFRD dam(233m) undergoing in the world at the present.The geology investigation reveals that the overlayer of the sand and grit in the river bed contains lenticular bodies with sand and grit fines and finely clay.Considering of the importance of the project and difficulties in technology as well as further design optimization,its very necessary to conduct the stability analysis to check the impact of the sand and grit overlayer on the stability of the downstream slope of the dam body.And corresponding technology measures are provided.The methods applied in the stability analysis at the present are discussed.The results can be used as inference in the CFRD design of 200 meters.

关 键 词：边坡 混凝土面板堆石坝 稳定分析 刚体极限平衡法 砂卵砾石 覆盖层 

分 类 号：TV641.43[水利工程—水利水电工程]