狮子坪水电站坝基砂层液化判别分析  

Discriminated Analysis on Liquefaction of Sand Bed in Dam Foundation at Shiziping Hydropower Station

作　　者：黎昌有[1] 邓卫东[1] 冯建明[1] 

机构地区：[1]中国水电顾问集团成都勘测设计研究院,四川成都610072

出　　处：《四川水力发电》2010年第4期12-13,33,共3页Sichuan Hydropower

摘　　要：狮子坪水电站大坝基础覆盖层深厚(最深达101.5 m),结构层次复杂。坝基中存在第②层粉质壤土与粉细砂互层、第④-1和④-3层含碎砾石砂层以及第③-1层中随机分布砂层透镜体。依据试验成果并结合规范技术要求,采用多种方法对坝基下砂层液化进行了判别,为坝基下砂层是否加固处理提供了地质建议依据。The dam foundation overburden at Shiziping hydropower station is deep and thick(the deepest is 101.5m) with complicated structures.The dam foundation bedrock consists of silty loam and silty sand alternating beds,broken gravel sand layer and random distributed sand layer lens.Based on experimental results and combined with specification technical requirements,liquefaction of sand bed under the dam foundation is discriminated by using a variety of methods,providing geological suggestions for whether need to consolidate the sand layer under the dam foundation.

关 键 词：狮子坪水电站 坝基 深厚覆盖层 砂层液化 分析 

分 类 号：TV223[水利工程—水工结构工程]