An experimental study of soilmass deformability subject to true triaxial loads during unloading under drainage

ZHUANG Xin-shan; ZHAO Xin; HE Shi-xiu; ZHU Rui-geng

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

An experimental study of soilmass deformability subject to true triaxial loads during unloading under drainage

更新时间：2026-06-25

- An experimental study of soilmass deformability subject to true triaxial loads during unloading under drainage
- Vol. 28, Issue 7, (2007)
- 作者机构：
  
  1. 湖北工业大学土木工程与建筑学院,武汉,430068
  2. 中国兵器工业北方勘察设计研究院,石家庄,050011
  3. 武汉理工大学土木工程与建筑学院,武汉,430070
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU41
- Online First：13 September 2013，
  
  Published：2007
- 稿件说明：
移动端阅览
ZHUANG Xin-shan, ZHAO Xin, HE Shi-xiu, et al. An experimental study of soilmass deformability subject to true triaxial loads during unloading under drainage[J]. 2007, 28(7).
DOI：

ZHUANG Xin-shan, ZHAO Xin, HE Shi-xiu, et al. An experimental study of soilmass deformability subject to true triaxial loads during unloading under drainage[J]. 2007, 28(7). DOI：

摘要

在真三轴仪上模拟基坑开挖周边土体的应力路径，进行了排水与不排水两种卸荷试验，通过对试验结果的对比分析可知，土体在不同排水条件下应力-应变关系有着显著的差异，说明排水条件对土体的变形性状有一定的影响。进一步研究了排水条件下卸荷土体广义剪应力与广义剪应变的关系，证明土体广义剪应力与广义剪应变关系曲线呈明显的非线性，并根据土体实际应力路径定义了中主应力系数，推导出了土体卸荷剪切模量计算公式。

Abstract

The stress-path of the soilmass surrounding the periphery of a foundation pit project during excavation is simulated using a true triaxial unit; and two kinds of unloading tests are conducted under drainage and undrainage conditions respectively. It can be known from the comparison between the testing results that there is a remarkable difference in the stress-strain relationship of the soilmass provided the drainage conditions are different

which shows that the drainage

condition has an effect to a certain degree on the soilmass’s deformability. Further studies are conducted on the relationship between generalized shear stress and generalized shear strain under drainage conditions during unloading

the results showing the nonlinear relationship of those strain and stress. Finally

the equation to calculated the soil’s unloading shear modulus is deduced when the intermediate principal stress coefficient is defined in the real stress-strain path of the soils.

关键词

Keywords

references

Views

1777

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

True triaxial experiment of foundation pit considering initial stress

Wetting deformation characteristics of undisturbed loess under true triaxial stress-water path

Analysis of slope stability based on modified relationship of intermediate principal stress

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

Experimental study of modified Duncan-Chang model under true triaxial stresses

Related Author

MEI Guo-xiong

LU Ting-hao

CHEN Hao

LI Zhi

WANG Ze-chi

SHAO Shuai

SHAO Sheng-jun

WU Hao

Related Institution

Department of Architecture and Civil Engineering, Logistical Engineering University

Institute of Geotechnical Engineering, Nanchang Hangkong University, Nanchnag

Geotechnical Research Institute, Hohai University

Institute of Geotechnical Engineering, Xi’an University of Technology

Shaanxi Provincial Key Laboratory of Loess Mechanics and Engineering

AI问答

⁰