摘要
以太原市地铁深基坑工程为研究背景,采用数值模拟的方法分析了同一基坑不同位置的变形规律,以及不同几何尺寸基坑的变形特点。研究结果表明:基坑围护结构的水平位移和地表沉降均存在明显的空间效应;基坑深度和宽度一定时,当长宽比大于3时,空间效应作用消失,可采用二维平面计算方法进行分析。
Taking the deep foundation pit of Taiyuan Metro as the research background,numerical simulation method was used to analyze the deformation laws of the same foundation pit at different positions,as well as the deformation characteristics of the foundation pit with different geometric dimensions.The research results indicate that there are significant spatial effects on the horizontal displacement and surface settlement of the foundation pit.When the depth and width of the foundation pit are con-stant,and the aspect ratio is greater than 3,the spatial effect disappears,and a two-dimensional plane calculation method can be used for analysis.
作者
王文正
张艳秋
李栋
张国亮
巨玉文
Wang Wenzheng;Zhang Yanqiu;Li Dong;Zhang Guoliang;Ju Yuwen(Beijing Municipal Construction Group Co.,Ltd.,Beijing 100176,China;Taiyuan Rail Transit Group Co.,Ltd.,Taiyuan Shanxi 030000,China;Civil Engineering College,Taiyuan University of Technology,Taiyuan Shanxi 030024,China)
出处
《山西建筑》
2024年第10期1-5,共5页
Shanxi Architecture
基金
北京市政建设集团有限责任公司资助项目:太原典型富水及黄土地层中市政工程基坑支护体系研究(编号:2019002)
太原轨道交通集团有限公司资助项目:复杂地质条件下地铁深基坑设计与施工关键技术研究(编号:010100362021034)。
关键词
深基坑
空间效应
变形
数值模拟
deep foundation pit
space effect
deformation
numerical simulation