滨海地区地铁隧道渗漏成因与治理对策研究  

Research on Causes and Countermeasures of Water Leakage in SubwayTunnels in Coastal Area

作　　者：张羽 周鲁 孙晓贺 李俊 施成华[2] 刘胜利 ZHANG Yu;ZHOU Lu;SUN Xiaohe;LI Jun;SHI Chenghua;LIU Shengli(Guangzhou Metro Design and Research Institute Co.,Ltd,Guangzhou 5100102;School of Civil Engineering,Central South University,Changsha 410075)

机构地区：[1]广州地铁设计研究院股份有限公司,广州510010 [2]中南大学土木工程学院,长沙410075

出　　处：《现代隧道技术》2024年第5期234-242,273,共10页Modern Tunnelling Technology

摘　　要：针对滨海地区地铁隧道渗漏水问题,结合福州地铁多条线路,对地铁隧道施工阶段和运营阶段的车站和盾构区间渗漏情况进行统计,并对渗漏成因进行分析,最终给出渗漏水防治措施与建议。研究结果表明:在施工阶段车站渗漏情况比盾构区间渗漏情况更严重,而在运营阶段则相反;地铁车站主要渗漏部位为侧墙和底板,盾构区间的渗漏主要集中在管片拼接缝位置;车站渗漏水多为施工问题导致,具体包括围护结构浇筑质量不佳、防水卷材破损以及施工缝处理不到位;盾构区间渗漏成因分为安装及施工、运输及养护、材料本身质量以及结构问题4个方面,其中安装及施工问题最为严重;为减少盾构区间渗漏水,盾构隧道结构设计时应考虑施工水平,当施工水平较低时,采用平接头代替抗剪切榫接头可明显减少管片破损及渗漏水现象。Focusing on the issue of water leakage in subway tunnels in coastal areas,this study investigates the leakage conditions during both the construction and operation stages of multiple lines of the Fuzhou Metro.The causes of water leakage are analyzed,and prevention measures are proposed.The study results indicate that during the construction stage,water leakage in subway stations is more severe than in shield tunnels,whereas during the operation stage,the opposite is true.The main leakage areas in subway stations are sidewalls and baseboards,while leakage in shield tunnels is concentrated at segment joints.The primary causes of station leakage are construction-related,including poor pouring quality of enclosure structures,damage to waterproof membranes,and improper treatment of construction joints.The causes of shield tunnel leakage can be categorized into four aspects:installation and construction,transportation and maintenance,material quality,and structural issues,with installation and construction problems being the most critical.To mitigate water leakage in shield tunnels,the structural design should account for construction proficiency.When construction levels are low,flat joints should replace shear key joints to significantly reduce segment damage and water leakage.

关 键 词：滨海地区 地铁车站 盾构隧道 渗漏水 防治措施 

分 类 号：U457.2[建筑科学—桥梁与隧道工程]