The paper analyzes mountain tunnel waterproofing and drainage techniques and existing problems,puts forward mountain tunnel water-proof and drainage design optimizing methods,finally discusses construction quality control points of mountain tunnel waterproof and drainage sys-tem,which has provided some guidance for the mountain tunnel waterproof and drainage design and construction in actual engineering application.%对山岭隧道的防排水技术及其存在的问题进行了分析,提出了山岭隧道防排水设计的优化方法,论述了山岭隧道防排水系统的施工质量控制要点,为实际工程应用中山岭隧道的防排水设计及施工提供了参考。
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