Research on microstructural catastrophe model of deformation of collapsible loess

被引：0

作者：

Sun Qiang ^{[1
]}

Zhang Xiao-ke ^{[1
]}

Li Hou-en ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2008年 / 29卷 / 03期

关键词：

collapsible loess; deformation mechanism; microstructure; stability; catastrophe;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

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 K and force state (sigma,tau) of the model. When the connection rigidity reduces, the structure loses its steadily.

引用

页码：663 / +

页数：5