基于Midas/GTS深基坑开挖对临近地铁安全影响分析  

Analysis of the influence of deep foundation pit excavation on adjacent subway safety based on Midas/GTS

作　　者：刘阳 张丽华 LIU Yang;ZHANG Lihua(School of Safety Engineering,North China Institute of Science and Technology,Yanjiao,065201,China;College of Civil Engineering and Architecture,North China Institute of Science and Technology,Yanjiao,065201,China)

机构地区：[1]华北科技学院安全工程学院,北京东燕郊065201 [2]华北科技学院建筑工程学院,北京东燕郊065201

出　　处：《华北科技学院学报》2021年第4期74-79,共6页Journal of North China Institute of Science and Technology

基　　金：国家自然科学基金资助项目(51178185,42177170);河北省自然科学基金资助项目(E2021508031)。

摘　　要：当前地铁的开发和基坑工程数量急剧增多,其规模呈现出不断扩大的趋势。临近有地铁的基坑,施工过程可能会对地铁结构造成结构变形。严重时,可能会造成重大事故。本文以某基坑临近地铁实际工程为依托,运用Midas/GTS有限元软件对基坑和地铁区间隧道和车站主体在主要部位的位移和应力方面进行数值模拟分析,与现场实际监测数据进行比对分析,从而研究既有地铁的安全性。the number of subway development and foundation pit projects has increased sharply,and its scale has shown a trend of continuous expansion.In the process of foundation pit construction near the existing subway,the subway structure will be affected by structural deformation and serious accidents will occur.This paper,based on a practical project near the subway,uses Midas/GTS finite element software to carry out numerical simulation analysis on the displacement and stress of the main parts of the foundation pit and the subway section tunnel and the main body of the station,and compare and analyze it with the actual monitoring data on the site,so as to study the safety of existing subways.

关 键 词：基坑工程 地铁结构 数值模拟 数据比对 

分 类 号：U231.4[交通运输工程—道路与铁道工程]