城市商业综合体施工对既有地铁结构影响分析  

Analysis of the Influence of Urban Commercial Complex Construction on Subway Structure

作　　者：侯勉望[1] HOU Mian-wang(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi'an 710043,China)

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043

出　　处：《价值工程》2025年第6期10-12,共3页Value Engineering

摘　　要：邻近地铁项目的施工会对地铁线路产生影响。城市商业综合体项目除基坑开挖和上部荷载施工外还需要设置接驳大厅和接驳通道,加剧了对地铁线路原有应力场的扰动,对地铁结构的安全使用产生较大影响。本文基于西安邻近地铁线路的某城市商业综合体,采用数值模拟的方法研究接驳大厅基坑开挖、浅基坑开挖、接驳通道贯通和上部荷载施工对地铁结构的影响。结果表明:各工况接驳大厅的施工与浅基坑的开挖对地铁沉降影响约为3mm,部分地铁结构的侧向位移约为6.5mm;接驳通道暗挖与地上结荷载对地铁结构影响较小,均不足1mm。研究成功为邻近地铁线路项目设计与施工提供参考和借鉴。The construction of adjacent subway projects will have an impact on the subway line.In addition to foundation pit excavation and upper load construction,the urban commercial complex project also needs to set up a connection hall and a connection channel,which aggravates the disturbance to the original stress field of the subway line and has a great impact on the safe use of the subway structure.Based on an urban commercial complex adjacent to the subway line in Xi'an,this paper studies the influence of foundation pit excavation,shallow foundation pit excavation,connection channel connection and upper load construction on the subway structure by numerical simulation.The results show that the construction of the connecting hall and the excavation of the shallow foundation pit have a great influence on the ground displacement,but have little effect on the deformation of the subway.The excavation of the connecting channel and the construction of the ground structure have no effect on the subway structure.The research successfully provides reference for the design and construction of adjacent subway line projects.

关 键 词：基坑 地铁隧道 数值模拟 地铁变形 

分 类 号：TU753[建筑科学—建筑技术科学]