Experimental investigation on mechanical properties of a volcanic ash with different grain size gradations

被引：0

作者：

Jiang Ming-jing ^{[1
,2
]}

Zheng Min ^{[1
,2
]}

Wang Chuang ^{[3
]}

Zhang He ^{[3
]}

Li Li-qing ^{[1
,2
]}

机构：

[1] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China

[2] Tongji Univ, Minist Educ, Key Lab Geo Tech & Underground Engn, Shanghai 200092, Peoples R China

[3] China Acad Space Technol, Beijing 100094, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2009年 / 30卷

关键词：

volcanic ash; grain gradation; shear strength; compressibility;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Using a red volcanic ash taken from Jingyu County of Jilin Province as a raw material, samples with five different grain gradations are prepared. The specific density is measured by specific density test and the shear strength and compressibility of volcanic ashes are tested by direct shear test and one-dimensional consolidation test. The influence of grain gradation on shear strength and compressibility of volcanic ashes is also analyzed for the application of volcanic ashes in engineering practice in the future. It is found that the shear characteristics of the red volcanic ash samples are similar to dry sand; and the samples all belong to medium compressible soil.

引用

页码：64 / 66

页数：3