Laboratory Study on Shear Strength of Loess Joint

被引：20

作者：

Luo, Y. ^{[1
]}

Wang, T. H. ^{[1
]}

Liu, X. J. ^{[1
]}

Zhang, H. ^{[1
]}

机构：

[1] Xian Univ Architecture & Technol, Coll Civil Engn, Xian 710055, Peoples R China

来源：

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING | 2014年 / 39卷 / 11期

关键词：

Loess joint; Friction angle; Moisture content; Density;

D O I：

10.1007/s13369-014-1318-x

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The internal friction angle of loess joint is measured by means of direct shear test. The results show that the relationship between internal friction angle and moisture content is revealed to be a parabola one. The internal friction angle has an extremum when the moisture content reaches a certain value. This moisture content is called the limit moisture content. The internal friction angle is also related to the dry density of loess, but it is not remarkable. The matric suction of the tested loess is tested as well. Analysis bases on tested data shows that, when the moisture content is greater than the limit moisture content, the matric suction and shear strength decrease with the increase in moisture content of loess. However, when the moisture content is lower than the limit moisture content, the current understanding on the relationship between water content and matrix suction is not appropriate, and results show that the matric suction and shear strength increase with the increase in loess moisture content.

引用

页码：7549 / 7554

页数：6

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