Experimental study of triaxial test of undisturbed unsaturated loess

LI Yong-le; ZHANG Hong-fen; SHI Xiao-guang; HOU Jin-kai; YANG Li-le

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Experimental study of triaxial test of undisturbed unsaturated loess

更新时间：2026-06-25

- Experimental study of triaxial test of undisturbed unsaturated loess
- Vol. 29, Issue 10, (2008)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉,430071
  2. 华北水利水电学院,郑州,450008
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU411.7
- Online First：03 August 2013，
  
  Published：2008
- 稿件说明：
移动端阅览
LI Yong-le, ZHANG Hong-fen, SHI Xiao-guang, et al. Experimental study of triaxial test of undisturbed unsaturated loess[J]. 2008, 29(10).
DOI：

LI Yong-le, ZHANG Hong-fen, SHI Xiao-guang, et al. Experimental study of triaxial test of undisturbed unsaturated loess[J]. 2008, 29(10). DOI：

摘要

利用特制的非饱和土三轴仪器，对不同含水量条件下原状非饱和黄土的强度和土-水特征曲线进行了试验研究。试验结果表明：非饱和黄土的抗剪强度随着含水量的不同而不同，含水量越大，非饱和黄土的基质吸力就越小，抗剪强度亦越小。含水量趋于饱和时，非饱和黄土的抗剪强度值逐渐接近于饱和黄土的强度值。原状非饱和黄土的抗剪强度均高于饱和黄土的抗剪强度。非饱和黄土的内摩擦角受含水量的影响不大。凝聚力受含水量的影响很大，含水率越大，基质吸力越小，总凝聚力越小。根据实验结果，提出了非饱和土的抗剪强度模型，该模型易于确定，与实测基本吻合，误差较小，满足非饱和黄土的强度计算要求。

Abstract

With triaxial apparatus specially made for unsaturated soil

the tests of shear strength and soil-water characteristic curve of unsaturated loess under different water contents are performed. The test data show that the shear strength of unsaturated is bigger than that of saturated loess; and it decreases with increasing water contents and lessening matric suction

and vice versa. The shear strength of unsaturated loess will be close to that of saturated loess when water content is saturated. The internal friction angle changes little while water contents change

but the total cohesions change greatly under different water contents. The loess has smaller matric suction and total cohesions at high water contents. According to the results

the model of shear strength of unsaturated loess is proposed. The parameters can be derived easily. The error is small

and the model meets the requirement of calculation of sheer strength of unsaturated loess.

关键词

Keywords

references

Views

1227

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Soil-water characteristic curve and permeability perdiction on Childs & Collis-Geroge model of unsaturated loess

Research on shear strength of compacted soils considering saturation degree

Study of characteristics of matric suction in landslide slip soils before and after landslide control

Unified solutions of shear strength and earth pressure for unsaturated soils

Experimental study of stress path of shallow gassy sand of Hangzhou Bay

Related Author

LI Ping

LI Tong-lu

WANG Hong

LIANG Yan

LUO Yi-dao

ZHANG Lu-ming

ZHENG Ming-xin

HE Min

Related Institution

Department of Geological Engineering, School of Geological Engineering and Surveying, Chang’an University

Key Laboratory of Education Ministry on Highway Engineering of Special Region, Institute of Highway, Chang’an University

School of Civil and Architectural Engineering, Wuhan University

Shenzhen Geotechnical Investigation & Surveying Institute Co. Ltd.

Southwest Geotechnical Investigation & Design Institute of China Nuclear Industry

AI问答

⁰