Liquefaction of sand under bi-directional cyclic loading

被引：0

作者：

Luan, Mao-Tian ^{[1
,2
]}

Jin, Dan ^{[1
,2
]}

Zhang, Zhen-Dong ^{[3
]}

Xu, Cheng-Shun ^{[4
]}

Li, Peng ^{[5
]}

机构：

[1] State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China

[2] Institute of Geotechnical Engineering, School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China

[3] College of Civil Engineering, Huaihai Institute of Technology, Lianyungang 222005, China

[4] College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China

[5] Huludao Highway Department, Huludao 125000, China

来源：

Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2009年 / 31卷 / 03期

关键词：

Geotechnical engineering - Stress analysis - Testing - Cyclic loads - Deformation - Shear flow;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

To simulate the continuous rotation of principal stress axes, a set of stress controlled bi-directional cyclic loading tests were conducted. Tests were performed with two cyclic stress components involving the horizontal shear stress (torsional shear stress) and the vertical shear stress (stress difference between vertical normal stress and horizontal normal stress) to provide an approximate presentation of wave or seismic loading conditions. The stress path shown in the orthogonal coordinates of stress difference and shear stress had an elliptical shape. The ratio of the shear amplitude between the longer axis and shorter axis and the area enclosed by elliptical rotational loading path were controlled in a planned way. Test results showed that the stress-strain behavior was significantly affected by the ratio of amplitude of the two shear stress components. But it was nearly independent on the area enclosed by elliptical rotational loading path. The deformation behaviors were classified as two different types based on the ratio value.

引用

页码：319 / 325