Characteristics of collapsibility coefficient curves of loess during moistening and demoistening process

ZHANG Mao-hua; XIE Yong-li; LIU Bao-jian

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Characteristics of collapsibility coefficient curves of loess during moistening and demoistening process

更新时间：2026-06-25

- Characteristics of collapsibility coefficient curves of loess during moistening and demoistening process
- Vol. 26, Issue 9, (2005)
- 作者机构：
  
  1. 东北林业大学土木工程学院,哈尔滨,150040
  2. 长安大学公路学院,西安,710064
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU444
- Online First：30 December 2013，
  
  Published：2005
- 稿件说明：
移动端阅览
ZHANG Mao-hua, XIE Yong-li, LIU Bao-jian. Characteristics of collapsibility coefficient curves of loess during moistening and demoistening process[J]. 2005, 26(9).
DOI：

ZHANG Mao-hua, XIE Yong-li, LIU Bao-jian. Characteristics of collapsibility coefficient curves of loess during moistening and demoistening process[J]. 2005, 26(9). DOI：

摘要

分别采用单线法和双线法对原状黄土进行了增、减湿情况下的单轴压缩试验。根据试验结果，总结出了黄土的湿陷变形随饱和度及压力变化的规律，分析了湿陷性黄土在增（减）湿过程中的湿陷变形性状及不同应力路径对黄土湿陷变形特性的影响，指出湿陷系数曲线因为试验方法的不同而表现出不同的规律性：初始含水量较低时，单线法的湿陷性大于双线法；当初始含水量达到某个值时，两者的湿陷系数曲线出现交叉现象；当初始含水量超过该值后，单线法的湿陷性小于双线法；这种交叉现象是由黄土本身的特殊结构性所决定的。最后对湿陷系数与初始含水量的关系进行了探讨。

Abstract

The behavior of undisturbed loess in the case of moistening or demoistening is investigated with single-line and double-line uniaxial compression test. According to the experimental results

the characteristics of collapsible deformation of loess changing with saturation level and pressure are presented. The collapsible deformation properties of loess during moistening or demoistening process and the influence of different stress-paths on collapse deformation characters of loess are analyzed. It is indicated that collapsibility coefficient curves can display different characteristics for different test method. The collapsibility of single-line method is larger than that of double-line method for lower initial moisture content

and is smaller than that of double-line method for higher initial moisture content. For certain value of initial moisture content in between

collapsibility coefficient curves of the two methods will intersect. This intersection phenomenon is caused by special structure of loess. Finally

the relation between collapsibility coefficient and initial moisture content is discussed.

关键词

Keywords

references

Views

1982

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Three-dimensional distinct element simulation of macro triaxial compressional strength characteristics of methane hydrate through uniaxial compressional test

Study of ultrasonic test and uniaxial compression test of jointed rock masses

Field test research on treatment effect of embankment foundation in class Ⅳ dead-weight collapsible loess zone along railway passenger dedicated line

A study progress on in-situ soaking test on collapsible loess

New recognition of collapsibility evaluation and remnant collapse of loess

Related Author

JIANG Ming-jing

HE Jie

SUN Xu-shu

LI Jian-lin

WANG Le-hua

CHEN Xing-zhou

LI Fei

CHENG Dong

Related Institution

Department of Geotechnical Engineering, Tongji University

Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University

State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University

College of Civil and Architecture Engineering, Xi'an University of Science and Technology

College of Civil Engineering and Architecture, China Three Gorges University

AI问答

⁰