临近地铁轨道线高悬臂双排桩支护结构分析  

Analysis of Support Structure of High-cantilever Double-row Piles Near Metro Rail Lines

作　　者：王岩 蒋超 WANG Yan;JIANG Chao(Jiangsu Bosen Architectural Design Co.,Ltd,Wuxi Jiangsu 214072 China;Jiangsu Jianyan Civil Engineering Quality&Safety Appraisal Co.,Ltd,Nanjing Jiangsu 210008 China)

机构地区：[1]江苏博森建筑设计有限公司,江苏无锡214072 [2]江苏建研建设工程质量安全鉴定有限公司,江苏南京210008

出　　处：《江苏建筑》2024年第4期110-115,共6页Jiangsu Construction

摘　　要：随着城市地铁建设的发展,临近地铁线路的基坑支护技术越来越成为一个普遍问题。文章主要针对无锡地铁4号线临近的XDG-2017-28号地块项目基坑支护方案进行分析,确定在无锡一定地区范围土层条件下,高悬臂双排桩支护结构可以满足各项支护要求,并能有效避免整体支撑体系对地下结构施工带来的不便。同时,通过用MIDAS GTS NX有限元分析软件模拟基坑的完整施工过程,验证了该支护体系安全、可靠,可为类似工程提供有益的参考。With the development of urban subway construction,the technology of retaining and protection for excavations close to metro rail lines has become more and more a common problem.This paper mainly analyzes the retaining and protection scheme of the XDG-2017-28 Block Project close to Wuxi Metro Line 4,and confirms that under soil layer conditions in a certain area of Wuxi,the high-cantilever double-row piles structure can meet various retaining and protection requirements and effectively avoid the inconvenience caused by the integral strut system to underground structure construction.At the same time,MIDAS GTS NX finite element analysis software is used to simulate the complete construction process of excavations,which verifies that the retaining and protection system is safe and reliable,and can provide useful references for similar projects.

关 键 词：基坑支护 双排桩 修正摩尔-库伦模型 有限元模拟 

分 类 号：TU473[建筑科学—结构工程]