摘要
文章以兰州某深基坑为工程背景,采用分析软件PLAXIS 3D进行基坑空间效应分析,计算结果表明:基坑坑角处总位移最小,随着距离坑角越远,坑角阴角效应逐步减弱;基坑侧边中点处地表沉降量是基坑角点部位的3倍,同时侧边中点部位地表沉降曲线呈明显的“勺”形,而坑角部位不明显。
Taking a deep foundation pit in Lanzhou as the engineering background,the spatial effect of the foundation pit is analyzed by analysis software PLAXIS 3D in this paper.The results show that the total displacement at the corner of the foundation pit is the smallest,and the negative effect of the pit corner is gradually weakened with the increase of the distance from the pit corner.The surface settlement at the midpoint of the side of the foundation pit is 3 times that of the corner of the foundation pit.At the same time,the surface settlement curve at the midpoint of the side shows an obvious"spoon"shape,while the corner of the pit is not obvious.
作者
何映成
唐昕
闫凯
任永忠
He Yingcheng;Tang Xin;Yan Kai;Ren Yongzhong(Gansu Jiantou Civil Engineering Construction Group Co.,Ltd.,Lanzhou,Gansu 730070;School of Civil Engineering,Lanzhou Institute of Technology,Lanzhou,Gansu 730050)
出处
《工程技术研究》
2022年第17期12-14,共3页
Engineering and Technological Research
基金
“基于流固耦合效应的深基坑支护结构变形及选型研究”横向课题
兰州工业学院“启智”人才培养计划基金(2019QZ-05)
兰州工业学院校级岩土工程重点学科(2019XK-04)。
关键词
深基坑工程
空间效应
地表沉降
数值分析
deep foundation pit engineering
spacial effect
surface settlement
numerical analysis
