摘要
市政工程深基坑施工中,开挖为重点环节,同时其扰动性较强,易影响周边建(构)筑物的稳定性,伴有深基坑水平位移现象,周边土体也易出现不均匀沉降,加强安全控制至关重要。文章以地铁车站工程为背景,引入有限元软件,依托该平台模拟深基坑的开挖流程,确定在开挖期间土体和支护结构的水平位移特点以及受力特点,根据影响因素提出相适应的控制策略。
In the construction of deep foundation pit of municipal engineering,excavation is the key link,and its disturbance is strong,which is easy to affect the stability of the surrounding existing buildings(structures).If accompanied by the horizontal displacement phenomenon of deep foundation pit,the surrounding soil is also prone to uneven settlement,so it is very important to strengthen safety control.Based on the background of subway station engineering,this paper introduces finite element software to simulate the excavation process of deep foundation pit on the platform,determines the horizontal displacement characteristics and stress characteristics of soil and supporting structure during excavation,and puts forward appropriate control strategies according to the influencing factors.
作者
胡巍
HU Wei(Southwest Municipal Engineering Design&Research Institute of China)
出处
《智能建筑与智慧城市》
2021年第6期89-91,共3页
Intelligent Building & Smart City
关键词
深基坑开挖
有限元分析
水平位移
deep foundation pit excavation
finite element analysis
horizontal displacement
