万家寨引黄入晋总干隧洞防渗施工方法

Tunnel export seepage-proofing construction methods in general main line of YRDP

引黄入晋工程是一项大型跨流域引水工程,6#隧洞由意大利CMC-SELI集团建设,全线通水后隧洞内存在渗漏现象。为保证隧洞通水后长期稳定运行、防止渗漏,研发了有效的防渗堵漏材料,改善了施工方法。经过室内试验,各项技术指标均达到或优于设计标准,并在现场进行了施工。

Wanjiazhai yellow river diversion project （YRDP） is a large-scale inter-basin water diversion project. 6# tunnel is constructed by CMC-SELL Group of Italy. Leakage happened after water flowing through. In order to ensure steady running and avoid leaking,we developed an effective anti-seepage plugging material and improved the construction process. After indoor test,all technical indexes reached or exceeded design standards,and it was constructed at the scene.