Study of time effect on top-down excavation of Shanghai Zhongshan Hospital

WANG Guo-cui; LIANG Zhi-rong; WEI Xiang

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Study of time effect on top-down excavation of Shanghai Zhongshan Hospital

更新时间：2026-06-25

- Study of time effect on top-down excavation of Shanghai Zhongshan Hospital
- Vol. 35, Issue S2, (2014)
- 作者机构：
  
  现代设计集团上海申元岩土工程有限公司,上海,200040
- 作者简介：
- 基金信息：
- DOI：
  CLC： O302
- Online First：12 November 2014，
  
  Published：2014
- 稿件说明：
移动端阅览
WANG Guo-cui, LIANG Zhi-rong, WEI Xiang. Study of time effect on top-down excavation of Shanghai Zhongshan Hospital[J]. 2014, 35(S2).
DOI：

WANG Guo-cui, LIANG Zhi-rong, WEI Xiang. Study of time effect on top-down excavation of Shanghai Zhongshan Hospital[J]. 2014, 35(S2). DOI：

摘要

软土具有流变性，因此，分析基坑开挖时需要考虑时间效应。逆作法施工时，由于出土条件和结构施工条件的限制，导致施工周期延长，因此，基坑施工的时间效应尤为显著。以上海中山医院工程为例，考虑软土流变效应，建立有限元模型对逆作法基坑的施工过程进行模拟，分析了施工期间各工况的围护和土体的内力与变形性状，并与实测结果进行了对比分析。结果表明，考虑土体流变的分析方法能较好的模拟逆作法施工的时间效应，并合理地反映基坑开挖过程对围护以及周边环境的影响。逆作法基坑施工过程复杂，开挖周期相对较长，应合理安排施工流程和施工速度，以达到控制围护结构及土体变形、保护周边环境的目的。

Abstract

In light of the effect of soft soil rheology

the time effect of rheology should be considered in excavation analysis. Due to the excavated and structural construction conditions

construction period is prolonged

therefore time effect is particularly significant in the construction process. For the project of Shanghai Zhongshan Hospital

the finite element model is built to simulate the construction process of top-down excavation of foundation pits. The calculated displacement of diaphragm wall and soil is compared to the measured one in various operating conditions during construction. The results show that the model can reasonably reflect the impact of excavation on the structure and the surrounding environment

and rationally simulate the time effect of excavation. The construction process of top-down excavation and the excavation period is relatively long

so the construction process and the construction time should be reasonable arranged to control the deformation of structure and soil and protect the surrounding environment.

关键词

Keywords

references

Views

1734

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis of damage causes of a metro station passageway

Theory of multi-bench retaining for large area foundation pit and its engineering application

Analysis of internal forces and displacement of pit supporting structure with scattered row piles considering soil arching effect

Study of influence of structural property on stability of foundation pit under plane strain condition

Analysis of three-dimensional stability of slope in foundation pit using point safety factor

Related Author

LIU Ting-jin

ZHOU Shu-yang

CAI Ren-xian

ZHENG Gang

GUO Yi-bin

NIE Dong-qing

DIAO Yu

LIU Chang

Related Institution

School of Civil Engineering and Transportation, South China University of Technology

State Key Laboratory of Subtropical Architecture Science, South China University of Technology

School of Civil Engineering, Tianjin University

Zhejiang Provincial Institute of Communications Planning Design and Research

Department of Geotechnical Engineering, Tongji University

AI问答

⁰