Research on microstructural catastrophe model of deformation of collapsible loess

SUN Qiang; ZHANG Xiao-ke; LI Hou-en

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Research on microstructural catastrophe model of deformation of collapsible loess

更新时间：2026-06-25

- Research on microstructural catastrophe model of deformation of collapsible loess
- Vol. 29, Issue 3, (2008)
- 作者机构：
  
  中国科学院地质与地球物理研究所,北京,100029
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU441
- Online First：19 July 2013，
  
  Published：2008
- 稿件说明：
移动端阅览
SUN Qiang, ZHANG Xiao-ke, LI Hou-en. Research on microstructural catastrophe model of deformation of collapsible loess[J]. 2008, 29(3).
DOI：

SUN Qiang, ZHANG Xiao-ke, LI Hou-en. Research on microstructural catastrophe model of deformation of collapsible loess[J]. 2008, 29(3). DOI：

摘要

根据湿陷性黄土的湿陷特点，分析了其主要影响因素，包括外部因素：水、荷载与内部因素微结构及其力学性质。从湿陷性黄土的湿陷性影响出发，建立了湿陷性黄土结构失稳突变模型，并从模型基本假定、微结构模型应力特性和湿化于微结构失稳的突变关系3个方面进行了理论分析研究，在一定程度上揭示出湿陷性黄土变形机制和规律。通过微结构突变失稳理论发现：当应力状态满足孔隙微结构失稳判别式时，微结构元的变形状态将诱发微结构失稳崩塌。微结构的稳定性与结构刚度和受力状态密切相关。地下水不仅改变了颗粒的受力情况，更重要的是使颗粒间连接刚度降低，从而导致微结构失稳。

Abstract

According to the characteristics of loess subsidence

the external factors such as water content and load and internal factors such as microstructure and mechanics features are analyzed. Deformation mechanism of loess subsidence is deeply researched according to the theory of microstructure un-stability. It is found that the primary causes of loess subsidence are changes of forces on the microstructure and water content after soaking

Through the analysis

it is discovered that steadily of microstructure model has enormous relatedness with the stiffness and force state of the model .When the connection rigidity reduces

the structure loses its steadily.

关键词

Keywords

references

Views

1563

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on deformation and stability evolution law of Huangtupo riverside slump-mass No. I

A catastrophe model for floor water-resisting key stratum instability induced by dynamic disturbance

Calculation for volumetric strain of collapsible loess considering microstructure instability

Key geomechanical issues and research recommendations for compressed CO2 energy storage in saline aquifers

Study on critical height of reinforced embankments with geocell layer

Related Author

NI Wei-da

TANG Hui-ming

HU Xin-li

WU Yi-ping

SU Ai-jun

ZUO Yu-jun

LI Shu-cai2

QIN Si-feng1

Related Institution

中国地质大学（武汉）工程学院

中国地质大学（武汉）教育部长江三峡库区地质灾害研究中心

Research Center for Numerical Test of Material Failure, Dalian University,,.

Research Center of Geotechnical and Structural Engineering, Shandong University

School of Civil Engineering and Mechanics, Shanghai Jiaotong University

AI问答

⁰