地铁车站SMW工法桩支护体系下的基坑管涌治理

Piping Treatment of Foundation Pit Under SMW Pile Supporting System of Subway Station

以天津地铁4号线某车站项目为例,分析介绍了在SMW工法桩支护体系下出现基底突涌或管涌时,传统堵漏方式存在的弊端。阐述了一种便捷有效的处理方法,即通过采用滤砂、集水、反压、注浆等方式,有效解决传统堵漏方式的缺陷,确保基坑安全,具有较好的安全性和实用性。总结的技术措施能为今后地铁车站施工中的渗漏水治理提供良好借鉴。

Taking a station project of Tianjin Subway Line 4 as an example,the disadvantages of traditional plugging methods in case of basal inrush or piping under SMW pile supporting system are analyzed and introduced.A convenient and effective treatment method is expounded,which can effectively solve the defects of traditional plugging methods,ensure the safety of foundation pit,and has good safety and practicability through the use of sand filtration,water collection,back pressure,grouting and other ways.The summarized technical measures can provide a good reference for the leakage water treatment in the future subway station construction.