摘要
在城镇化的推行过程中,城市人中的增加给城市交通带来极大压力。地铁成为目前解决城市交通的重要手段。但由于发展的不均衡,地铁沿线特别是地铁车站周边带来的"经济效应地"逐渐成为新的生产生活圈。近年来越来越多的深基坑开挖工程临近既有地铁车站或区间隧道,导致地铁结构隆起并威胁地铁安全。文中结合某工程实例,采用有限元计算方法,分析基坑放坡开挖、悬臂板桩墙法、围护桩+内支撑法对基坑周边邻近地铁车站结构影响的比较,结果表明:放坡开挖对基坑周边环境的影响明能够满足设计要求,同时对类似工程提供一定的参考。
In the process of urbanization, the increase of urban people has brought great pressure to urban traffic. The Metro has become an important way to solve urban traffic. However. the "economic effect" of subway stations along the subway has gradually become a new production and living circle. especially the subway stations. it’s due to the uneven development. In recent years. more and more deep foundation pit excavation works are close to the existing subway sta-tion or tunnel? which causes the subway structure to uplift and threaten the safety of the subway. According to an engi-neering example in this paper. The comparison of the influence of the excavation of the foundation pit and the structure of the subway station adjacent to the surrounding pit is analyzed? with the finite element method. The results show that in-fluence of excavation of foundation pit surrounding environment that could satisfies the design requirements. and provide some reference for the similar projects.
作者
田卫明
吴秉其
TIAN Wei-ming;WU Bing-qi(Chongqing Telecommunciation Polytechnic College,Chongqing,402247,China;Wuxi Metro Group LTD, Jiangsu Wuxi 214000,China)
出处
《贵阳学院学报（自然科学版）》
2019年第1期80-85,共6页
Journal of Guiyang University：Natural Sciences
基金
重庆市教育委员会高等职业技术院校新技术推广项目(项目编号:GZTG201619)
重庆市教育委员会2017年度科技项目(项目编号:KJ1753489)
关键词
黄土
深基坑
基坑工程
数值模拟
Loess
Deep foundation pit
Excavation engineering
Numerical simulation
