瀑布沟水电站坝基廊道结构缝渗水处理

为慎重、彻底解决瀑布沟水电站大坝心墙廊道结构缝渗水问题，经参建单位、专家组多次讨论、分析，确定了分期、分层处理的原则，即先对可能存在的大渗漏通道进行封堵，再封堵小的渗漏通道；对深层的渗漏源头、浅层的渗漏通道、表层的止水进行全面处理。经实践证明，处理效果较好。对整个处理过程作了详细介绍，可为同类型工程心墙廊道结构缝渗水的处理提供值得借鉴的经验。

Water seepage treatment of structural joints of dam foundation gallery in Pubugou Hydropower Station

To solve the water seepage problem of structural joints of dam gallery thoroughly and cautiously,the staged and layered principle for the treatment is determined after the repeated discussion by the construction units and expert panels,namely the big possible seepage passage is sealed firstly,and then the small ones.The seepage source in deep layer,the seepage passage in shallow layer and the water sealing in surface layer are all treated comprehensively.The result shows that it has a great treatment effect...