百东河水库溢洪道尾水渠软岩边坡稳定性分析  

Research on stability of soft rock slope at spillway tailrace of Baidonghe Reservoir

作　　者：徐伟[1] 钟言[1] 朱云法[1] 

机构地区：[1]水利部长江勘测技术研究所,湖北武汉430011

出　　处：《人民长江》2011年第22期60-61,67,共3页Yangtze River

摘　　要：百东河水库溢洪道尾水渠段两侧以高陡基岩边坡为主,岩性以三叠系粉砂质泥岩夹泥质粉砂岩为主的软岩,在水库加固过程中需对溢洪道尾水渠边坡实施开挖和治理。对于软岩地区的高陡边坡开挖和治理,应充分考虑施工过程中的各种因素,特别是软岩表层岩体的快速风化影响边坡治理效果。通过对该类型边坡进行稳定分析,提出了相应的处理方法。High-steep bedrock slope mostly appears at the both sides of spillway tailrace of Baidonghe Reservoir,and the slope rock mass is composed mainly by soft rock with lithology of silty mudstone of triassic and intercalated muddy siltstone,the treatment and excavation are needed in the reinforcement of the tailrace.For high-steep slope excavation in soft rock zone,various factors in the construction process are needed to be fully considered,especially,the fast weathering of the surface of soft rock mass will influence the slope treatment.Through analysis of the practical examples,some corresponding suggestions for the excavation and treatment are proposed accordingly.

关 键 词：软岩 高陡边坡 快速风化 边坡破坏 排水隔水 

分 类 号：TV651.1[水利工程—水利水电工程]