摘要
不同的基坑开挖形式对基坑变形特征的影响各不相同,对于深基坑的开挖及其地下结构的施工采用逆作法是经济且有效的。本文研究逆作法施工情况下基坑的变形特征,针对某工程实际施工情况,采用ABAQUS建立基坑三维模型,通过模拟逆作法施工过程分析基坑的变形特征,讨论地下围护结构的变形规律和地表沉降位移规律。
Different excavation forms have different influences on the deformation characteristics of foundation pit.It is economical and effective to adopt the top-down method for the excavation of deep foundation pit and the construction of underground structure.This paper studies the deformation characteristics of the foundation pit under the condition of topdown construction.According to the actual construction situation of a project,the finite element software ABAQUS is used to establish the three-dimensional model of the foundation pit,and the deformation characteristics of the foundation pit are analyzed by simulating the construction process of the top-down method.The displacement law of diaphragm wall and surface settlement displacement law are discussed.
出处
《中国建材科技》
2020年第6期145-147,110,共4页
China Building Materials Science & Technology
基金
甘肃建设科技攻关项目(JK2018-40,JK2019-08)。
关键词
基坑开挖
逆作法
变形
有限元
foundation pit excavation
top-down construction method
deformation
finite element method
