大型水电站渗控工程施工技术

Construction Technology of Seepage Control project of Large Hydropower Projects

杨房沟水电站是国内首个采用EPC模式建设的百万千瓦级大型水电站工程,渗控系统是拱坝设计和施工的重点。杨房沟水电站拱坝坝基工程地质和水文地质条件复杂,拱坝运行工况复杂,帷幕防渗设计技术与质量标准要求高,其实施效果直接影响拱坝基础渗透稳定、变形稳定及抗滑稳定。渗控工程技术的实施,结果表明渗流工程运行情况正常,且运行良好,为以后类似工程施工提供借鉴。

Yangfanggou Hydropower Project is the first million-kilowatt-scale large hydropower project constructed in EPC mode in China,and the seepage control system is the focus of dam design and construction.The engineering geological and hydrogeological conditions of the arch dam foundation of Yangfanggou Hydropower Project are complex,arch dam operation conditions are complicated,curtain seepage control design technology and quality standards are high,and its implementation effect directly affects the arch dam foundation infiltration stability,deformation stability and anti-slip stability.The implementation of the seepage control project,the results show that the seepage project operation is normal and well run,which provides reference for the future construction of similar projects.