摘要
为研究基坑开挖对临近既有地铁车站结构的影响,以济南某开发项目为例,开展影响程度判定,通过MIDAS有限元软件建立三维模型进行数值模拟分析。结果显示,基坑外部作业对既有车站结构的影响等级为特级,基坑开挖引起的既有车站结构最大水平位移为7.11 mm、最大竖向位移为14.53 mm。基坑施工过程中对既有车站产生的沉降和位移均满足规范要求,对类似工程具有借鉴意义。
In order to study the influence of foundation pit excavation on the structure of adjacent existing subway stations,taking a development project in Jinan as an example,the influence degree is determined,and a three-dimensional model is established by MIDAS finite element software for numerical simulation analysis.The results show that the influence level of external operation of foundation pit on the existing station structure is special,and the maximum horizontal displacement and maximum vertical displacement of the existing station structure caused by foundation pit excavation are 7.11 mm and 14.53 mm respectively.The settlement and displacement of the existing station in the process of foundation pit construction meet the specification requirements,which can be used as a reference for similar projects.
作者
张传强
孔令坤
乔南
马晓真
王令凯
ZHANG Chuanqiang;KONG Lingkun;QIAO Nan;MA Xiaozhen;WANG Lingkai(Jinan Rail TransitGroup Co.,LTD.,Jinan 250000,China)
出处
《科技和产业》
2023年第9期156-161,共6页
Science Technology and Industry
基金
山东省自然科学基金(ZR2021MD102)
山东省住房城乡建设科技计划项目(2022-K3-7)。
关键词
基坑开挖
既有车站
数值模拟
影响分析
foundation pit excavation
existing stations
numerical simulation
impact analysis
