基坑内支撑拆除对结构及周围环境影响分析
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- 英文论文题名：Static Analysis of the Effect of Support Breaking on Foundation Structure
- 论文作者：胡宏飚 ; 王晓 ; 张志强
- 英文论文作者：Hu Hongbiao ; Wang Xiao ; Zhang Zhiqiang ; BECG Civil Engineering Co. ; Ltd. ; School of Civil Engineering ; Beijing Jiaotong University
- 年：2016
- 作者机构：北京建工土木工程有限公司;北京交通大学土木建筑工程学院;
- 论文关键词：深基坑 ; 拆撑 ; 数值模拟 ; 轴力 ; 位移
- 英文论文关键词：deep foundation ; remove support ; simulation ; axial force ; displacement
- 会议召开时间：2016-12-02
- 会议录名称：第十一届建筑物改造与病害处理学术研讨会、第六届工程质量学术会议论文集
- 语种：中文
- 分类号：TU753
- 学会代码：OGTY
- 会议名称：第十一届建筑物改造与病害处理学术研讨会、第六届工程质量学术会议
- 会议地点：中国海南海口
- 主办单位：中国老教授协会土木建筑专业委员会、中国土木工程学会工程质量分会、北京交通大学土木建筑工程学院
- 学会名称：中国土木工程学会
- 页数：4
- 文件大小：1068k
- 原文格式：O
- 会议级别：全国
摘要
目前基坑支撑拆除主要采用机械拆除和爆破拆除2种方式,机械拆除的应用越来越广泛。支撑拆除过程对基坑结构及周边环境都会带来不同程度的影响。本文主要验证基坑采用机械拆除支撑方法对基坑围护结构的变形及对周围环境影响,并结合某工程实例,对基坑的第1道支撑进行部分拆除,方便顶板施工,加快施工进度;对施工过程进行有限元数值模拟,与现场实测结果进行对比,从而分析机械拆撑对基坑结构及周围土体的影响,为基坑的后续施工提供指导。
The foundati on support demolition mainly adopts two ways,including mechanical demolition and blasting demolition,the application of mechanical dismantling is more and more widely in engineering.The support demolition process will bring different degrees of impact on the structure of foundation and surrounding environment.This paper validate the mechanical dismantling supporting method of foundation deformation of foundation retaining structure and the impact on the surrounding environment,combined with a project,the first line of support of foundation are partly dismantled,which is convenient to the roof construction,and speeds up the construction progress;The finite element numerical simulation of construction process is conducted,compared with the measured results,the influence of mechanical dismantling on the supporting structure of foundation and surrounding soil is analyzed,which provides guidance for the foundation of the follow-up construction.
The foundati on support demolition mainly adopts two ways,including mechanical demolition and blasting demolition,the application of mechanical dismantling is more and more widely in engineering.The support demolition process will bring different degrees of impact on the structure of foundation and surrounding environment.This paper validate the mechanical dismantling supporting method of foundation deformation of foundation retaining structure and the impact on the surrounding environment,combined with a project,the first line of support of foundation are partly dismantled,which is convenient to the roof construction,and speeds up the construction progress;The finite element numerical simulation of construction process is conducted,compared with the measured results,the influence of mechanical dismantling on the supporting structure of foundation and surrounding soil is analyzed,which provides guidance for the foundation of the follow-up construction.
引文
[1]陈枝东,李福清,沈兆武,等.软土地基基坑支撑不同拆除方式对周边环境的影响对比分析研究[C]//第五届中国国际隧道工程研讨会文集.2011.
[2]盛棋楸,唐忠德.支撑拆除对基坑周边环境影响的分析与计算[J].建筑施工,1998(6):41-43.
[2]盛棋楸,唐忠德.支撑拆除对基坑周边环境影响的分析与计算[J].建筑施工,1998(6):41-43.