地铁车站穿地下管线沉降控制技术  

Settlement Control Technology of Underground Pipelines in Subway Stations

作　　者：宗建 ZONG Jian(The Second Engineering Co.,Ltd.,China Railway Seventh Bureau Group,Shenyang,Liaoning Province,110000 China)

机构地区：[1]中铁七局集团第二工程有限公司,辽宁沈阳110000

出　　处：《科技资讯》2023年第20期134-137,共4页Science & Technology Information

摘　　要：洞桩施工法(Pile-Beam-Arch method,PBA)是适用于城市路面施工空间受限、跨度大等地铁车站修建中,在城市地下空间的建设中发挥重要作用。城市地铁车站暗挖施工中常常会遇到埋在地下的管线,地下管线会给地铁车站暗挖施工带来了很大的困难,因此管线沉降控制是经常面临的难题之一。该文以沈阳地铁3号线三好街站为工程实例,介绍了PBA法施工,并阐述了初支导洞、拱部超前小导管注浆、格栅架立、信息化施工等沉降控制措施。以期为同类工程施工提供参考。The PBA construction method is applicable to the construction of subway stations with the limited space and large span of urban pavement construction,and it plays an important role in the construction of urban under‐ground space.However,underground pipelines are often encountered in the undercutting construction of urban subway stations,and they will bring great difficulties to the undercutting construction of subway stations,so the settlement control of pipelines is one of the often faced problems.This paper takes the Sanhaojiet Station of Shenyang Metro Line 3 as an engineering example,introduces the PBA construction method,and expounds settle‐ment control measures such as primary-supporting pilot tunnels,advanced small pipe grouting in the arch,grid erection and information construction,so as to provide reference for similar project construction.

关 键 词：PBA法施工 初支导洞 沉降控制措施 信息化施工 

分 类 号：U231.3[交通运输工程—道路与铁道工程] U455.43[建筑科学—桥梁与隧道工程]