[1]胡 偲,徐鼎平,江 权,等.基于不同模型的基坑开挖过程力学响应研究[J].湖北工业大学学报,2020,(2):78-83.
 HU Cai,XU Dingping,et al.Research on Mechanical Response of Excavation Process of Foundation Pit Based on Different Models[J].,2020,(2):78-83.
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基于不同模型的基坑开挖过程力学响应研究()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2020年第2期
页码:
78-83
栏目:
湖北工业大学学报
出版日期:
2020-04-30

文章信息/Info

Title:
Research on Mechanical Response of Excavation Process of Foundation Pit Based on Different Models
文章编号:
1003-4684(2020)02-0078-06
作者:
胡  偲1 徐鼎平2 江  权2 张家新3 樊  波3 郭广涛4
1 湖北工业大学土木建筑与环境学院, 湖北 武汉 430068;
2 中国科学院武汉岩土力学研究所,湖北 武汉 430071;
3 中交第二公路勘察设计研究院有限公司,湖北 武汉 430056;
4 安徽理工大学 土木建筑学院,安徽 淮南 232001
Author(s):
HU Cai1 2 XU Dingping2 JIANG Quan2 ZHANG Jiaxin3 FAN Bo3 GUO Guangtao4
1 School of Civil Engin,Architecture and Environment,Hubei Univ.of Tech.,Wuhan 430068,China;
2 State Key of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan 430071;
3 China Communications Construction Company Limited Second Highway Consultants Co., Ltd., Wuhan 430056,China;
4 Anhui Univ. of Sci. and Tech., Huainan 232001, China
关键词:
软土 本构模型 基坑 数值模拟 变形
Keywords:
soft soil constitutive model foundation pit numerical simulation deformation
分类号:
TU753
文献标志码:
A
摘要:
基坑工程开挖力学响应数值模拟结果的可靠性,依赖于选择合适的本构模型。为深入分析各常见本构模型在软土基坑开挖力学响应数值模拟中的适用性,减少因为本构模型选择带来的模拟误差,本文拟以武汉地区的一大型软土基坑工程为例,利用FLAC3D开展该基坑工程的开挖支护过程仿真模拟,基于基坑土体变形与基坑支护结构变形等来对比分析摩尔库伦模型、修正剑桥模型以及Cysoil模型在软土基坑工程开挖力学响应模拟中的异同和适用性。研究结果表明,对于武汉地区的软土基坑工程开挖力学响应分析,修正剑桥模型为最佳本构模型。该研究成果可为软土基坑工程开挖力学响应数值仿真的本构模型选择提供有益的借鉴。
Abstract:
The reliability of numerical simulation results of excavation response of foundation pit depends on the selection of appropriate constitutive model. To clearly analyze the applicability of various constitutive models in the excavation response simulation of foundation pit within soft soil and reduce the simulation error caused by constitutive models selection, this paper takes a large foundation pit with soft soil as an example, and carries out the excavation and support simulation of a foundation pit in Wuhan using FLAC 3D. The differences and applicability of the Mohr-Coulomb, modified Cam-clay and Cysoil models in the excavation response simulation of foundation pit within soft soil are comparatively investigated based on the deformation of foundation pit soil and supporting structure. The results show that the modified Cam-clay model is the best constitutive model for the excavation response simulation of foundation pit within soft soil in Wuhan. These presented experiences can provide useful reference for the constitutive model selection for the excavation response simulation of foundation pit within soft soil.

参考文献/References:

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备注/Memo

备注/Memo:
[收稿日期] 2019-10-15
[基金项目] 金属矿山安全与健康国家重点实验室开放课题(2017-JSKSSYS-01)
[第一作者] 胡偲(1994-), 男, 湖北黄冈人,湖北工业大学硕士研究生,研究方向为基坑开挖稳定性
更新日期/Last Update: 2020-05-13