金沙水电站大坝基础帷幕灌浆设计与施工  

Design and construction of curtain grouting for Jinsha Hydropower Station dam foundation

作　　者：肖伟 刘烁楠 李洪斌 蔡汉生 XIAO Wei;LIU Shuonan;LI Hongbin;CAI Hansheng(Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,China)

机构地区：[1]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《水利水电快报》2022年第3期32-36,共5页Express Water Resources & Hydropower Information

摘　　要：金沙水电站坝基卸荷裂隙分布范围广,发育深度大,且存在F9断层带、不整合面等地质缺陷,是产生坝基渗漏的主要通道。为解决绕坝渗漏问题,研究并提出了适于金沙水电站坝基及两岸防渗帷幕灌浆的设计及施工技术。经压水试验检查及物探声波测试,帷幕灌浆满足设计要求,防渗效果良好。There are several geological defects in Jinsha Hydropower Station dam foundation,including widely dis⁃tributed and deeply developed unloading fractures,F9 fault zone,unconformity plane,etc.,which are the main concentrated leakage passages of the dam foundation.In order to solve the leakage,the design and construction technology of anti-seepage curtain grouting were carried out on the dam foundation and both sides of Jinsha Hydro⁃power Station.According to the results of water pressure tests and geophysical acoustic tests in check holes,curtain grouting was qualified and effective for anti-seepage.

关 键 词：坝基渗漏 帷幕灌浆 压水试验 金沙水电站 

分 类 号：TV543.5[水利工程—水利水电工程]