黄土基坑桩锚支护开挖变形分析
Analysis of Deformation in Excavation of Pile Anchor Bracing for Loess Foundation Pit
王悦 1曹卫平 2赵敏3
作者信息
- 1. 西安建筑科技大学土木工程学院,西安 710055
- 2. 西安建筑科技大学土木工程学院,西安 710055;陕西省岩土与地下空间工程重点实验室,西安 710055
- 3. 西安工业大学建筑工程学院,西安 710021
- 折叠
摘要
依托西安某湿陷性黄土场地桩锚支护的深基坑开挖工程,采用ABAQUS有限元软件,研究围护结构在不同开挖深度下的变形及周围土体的变形特征.结果表明:围护结构及周围土体的变形随开挖深度的增大而增大;矩形基坑存在明显的空间效应;长边方向上连续墙水平位移、竖向位移、墙后土体变形均大于短边方向.
Abstract
Based on deep excavation engineering of pile anchor bracing on a collapsible loess site in Xi'an,ABAQUS finite element software was used to study the deformation characteristics of the retaining structure in different depth of excavation and the surrounding soil.The result shows that,the deformation of the retaining structure and the surrounding soil increase with the increase of the excavation depth;there exists significant spacial effect in rectangular foundation pit;both the horizontal and vertical displacement of diaphragm wall,and the soil deformation behind the wall on the long sides,are larger than those on the short sides.
关键词
深基坑/围护结构/变形分析/土体沉降/空间效应/基坑开挖Key words
deep foundation pit/retaining structure/deformation analysis/soil settlement/spacial effect/deep excavation引用本文复制引用
基金项目
陕西省自然科学基础研究计划一般项目(2019JM-006)
出版年
2024
国家科技期刊平台
NSTL
万方数据