地铁车站下穿既有车站施工技术  

CONSTRUCTION TECHNOLOGY OF SUBWAY STATION UNDERPASSING EXISTING STATION

作　　者：张志伟 ZHANG Zhi-wei(China Railway No.14 Group Corporation Tunnel Engineering Co.,Ltd.,250002,Ji'nan,China)

机构地区：[1]中铁十四局集团隧道工程有限公司,济南250002

出　　处：《建筑技术》2023年第8期908-910,共3页Architecture Technology

基　　金：辽宁省自然科学基金计划项目(2020-MS-271);辽宁省教育厅科学研究项目(JDL2020014);中铁十四局集团科技研究开发计划项目(2020QT03)。

摘　　要：为研究PBA工法在站站密贴下穿施工中的适用性,以北京地铁6号线苹果园站为工程实例,详细介绍了站站密贴下穿既有车站的洞桩法施工工艺的选择、工艺的原理和特点、施工步骤、施工关键技术、施工难点及相应的对策等,通过对国内首次进行的站站密贴车站洞桩法开挖技术进行总结,给出施工建议,为相似工程提供借鉴与参考。In order to study the applicability of the PBA method in the underpass construction of the station.Taking the Pingguoyuan Station of Beijing metro Line 6 as an engineering example,it introduces in detail the selection of the tunnel pile method construction technology,the principle and characteristics of the technology,the construction steps,the key construction technology,the construction difficulties and appropriate countermeasures.Through the summary of the first domestic excavation technology of the pile method of the station closely attached to the station,the corresponding construction suggestions are given for similar projects.It can provide reference for similar projects in the future.

关 键 词：地铁 站站密贴 洞桩法 

分 类 号：TU921[建筑科学—建筑设计及理论]