基于硬化土体模型分析基坑开挖对地铁车站的影响  

Analysis of the Influence of Foundation Pit Excavation on Subway Station Based on Hardened Soil Model

作　　者：黎浩 杨海星 马杰朋 李保国 LI Hao;YANG Haixing;MA Jiepeng;LI Baoguo(Sichuan Zhide Geotechnical Engineering Co.,Ltd.Chengdu 610051,China)

机构地区：[1]四川志德岩土工程有限责任公司,成都610051

出　　处：《广东土木与建筑》2021年第3期58-61,共4页Guangdong Architecture Civil Engineering

摘　　要：随着城市化的发展,地铁也越来越密集,在基坑施工时,若基坑周围有地铁存在,考虑基坑施工对地铁的影响就尤为重要。以昆明市某深基坑开挖为实例,基于硬化土体模型,采用Midas GTS软件进行有限元模拟,并与m法计算结果进行对比分析,得出该基坑开挖对地铁区间车站的影响总位移为5.07 mm,提出了地铁车站临近基坑时的基坑支护设计要点,为后续临近地铁车站的基坑支护设计提供依据。With the development of urbanization,the subway is becoming more and more dense.During foundation pit construction,it is particularly important to consider the influence of foundation pit construction on the subway if there is a subway around the foundation pit.A deep foundation pit excavation in Kunming City is taken as an example,based on the hardened soil model,Midas GTS software is used to conduct three-dimensional finite element simulation,and the results are compared and analyzed with the m method to obtain the key points of the foundation pit supporting design when the subway is near the foundation pit,providing a basis for the subsequent foundation pit supporting design near the subway.

关 键 词：基坑 硬化土体模型 地铁车站 数值模拟 

分 类 号：TU413.62[建筑科学—岩土工程]