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陆浑灌区修建于20世纪70年代,施工质量差的高填方渠段在运行中渗漏水现象较为普遍,为了彻底根治渗漏水现象,消除安全隐患,陆浑灌区续建配套节水改造工程在高填方渠段处理中采用了两布一膜土工布加混凝土护砌的全断面复合防渗法,效果显著。文章着重对复合防渗法的防渗机理、施工工艺、施工中常见问题及对策进行阐述,并结合实例对运行效果做出分析。
Luhun Irrigation District was built in the 1970s. The leakage of water in the high-fill canal section with poor construction quality is relatively common. In order to completely cure the leakage of water and eliminate the potential safety hazard, Luhun Irrigation District will continue to build a complete set of water- Works in the high fill canal treatment using two cloth a film of geotextile plus concrete retaining composite full-face composite seepage control method, the effect is significant. The article focuses on seepage prevention mechanism of composite seepage control method, construction technology, common problems in construction and countermeasures, and analyzes the operating results with examples.