高海拔严寒地区交通隧洞盾构管片渗漏处理技术  

Leakage Treatment Technology for Shield Segments of Traffic Tunnels in High-altitude Cold Region

作　　者：范志勇 肖承京[2] Fan Zhiyong;Xiao Chengjing(Huaneng Tibet Yarlung Zangbo River Hydroelectric Developing Investment Co.,Ltd.,Linzhi,Tibet 860000,China;Changjiang River Scientific Research Institute of Changjiang Water Resources Commission,Wuhan,Hubei 430010,China)

机构地区：[1]华能西藏雅鲁藏布江水电开发投资有限公司,西藏林芝860000 [2]长江水利委员会长江科学院,湖北武汉430010

出　　处：《中国建筑防水》2020年第4期43-45,共3页China Building Waterproofing

摘　　要：某公路盾构隧洞位于高海拔严寒地区,盾构管片安装施工完成后发现较多部位存在漏水现象,给车辆通行带来较大安全风险。通过对隧洞管片接缝、螺栓孔及灌浆孔等部位渗水特征的统计分析,结合隧洞管片接缝漏水与山体断裂带分布的相关性,制定了管片接缝滴漏水部位埋管引排,管片接缝渗水及螺栓孔、灌浆孔漏水直接封堵的防渗处理方案,并据此开展了渗漏处理施工,取得了良好效果。The shield tunnel of a highway is located at high-altitude and cold region.After the completion of shield segments construction,leakages happened to many locations,and this brought great safety risks to the passing of vehicles.Through statistical analysis of the leakage features of tunnel segment joints,bolt holes and grouting holes,and considering the correlation of tunnel segment joint leakage and the distribution of mountain fracture zones an anti-seepage treatment plan is formulated:laying drainage pipes for segment joints leaking,direct blocking treatment for seepage of segments joints,bolt holes and grouting holes.The plan is carried out and excellent effects are achieved.

关 键 词：高海拔 盾构隧洞 管片接缝 渗漏处理 

分 类 号：U45[建筑科学—桥梁与隧道工程] TU761.11[交通运输工程—道路与铁道工程]