Study of liquefaction evaluation used in indoor test of silt, silty sand mixed clay

被引：0

作者：

Li Sa ^{[1
]}

Sun Xing-song ^{[1
]}

Yao Ming-lun ^{[1
]}

机构：

[1] Tianjin Univ, Geotcch Inst Civil Fac, Tianjin 300072, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2006年 / 27卷 / 03期

关键词：

dynamic triaxial test; liquefaction; cumulative pore water pressure; silt; silty sand;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

No guidelines are available on liquefaction evaluation of silt-clay and silty sand-clay mixtures under cyclic loading. The liquefaction behavior of these kinds of soils is not understood clearly at present. In this paper, according to the results of dynamic triaxial tests, the characters of cumulative pore water pressure and dynamic deformation of silt-clay and silty sand-clay in Tianjin are analyzed. The liquefaction evaluations of indoor tests are studied. At the same time, the results of wave velocity test in situ are compared to that of the indoor tests. As results, for the silt-clay and silty sand-clay in Tianjin under cyclic load, the value of water pore pressure tends to be stable when it is equal to 60 %-80 % of confining pressure; the corresponding value of double amplitude strain is 5 %. Therefore, these values can be used as the indexes of liquefaction evaluation.

引用

页码：360 / 364

页数：5