华南地区公路山岭隧道渗漏水病害分析

Analysis on Water Leakage Disease of Highway Mountain Tunnel in South China

华南地区既有隧道病害以渗漏水现象最为普遍。在全面搜集华南地区现役高速公路营运隧道渗漏水病害现状的基础上,选取了17个典型隧道维修加固项目作为研究对象,针对隧道出现的裂缝和渗漏水处治费用进行了统计分析,并就处治费用随着年份的变化规律及其与降水量的关联性进行探讨。结果表明:渗漏水处治费用在维修加固工程总费用中占比超过60%且逐年增长、随着当地降水量的增加而增加,渗漏水病害复发趋势逐年上升,渗漏水病害的加重导致了其他类型病害的严重程度提高,表明渗漏水病害是隧道各种病害的促进因素。

Water leakage is the most common phenomenon of existing tunnel diseases.In fact,water leakage is the promoting factor and comprehensive reflection of various tunnel diseases.Based on the comprehensive collection of the current situation of leakage diseases of existing expressway operating tunnels in South China,17typical tunnel maintenance and reinforcement projects are selected as the research object,the treatment costs of cracks and leakage in tunnels are statistically analyzed,and the change law of treatment costs and its correlation with precipitation are discussed.