Effect of mean grain diameter on vortices, force chains and local volume changes in granular shear zones

被引：0

作者：

Nitka, M. ^{[1
]}

Tejchman, J. ^{[1
]}

Kozicki, J. ^{[1
]}

Lesniewska, D. ^{[2
]}

机构：

[1] Gdansk Univ Technol, Gdansk, Poland

[2] Gdansk Univ Technol, Koszalin, Poland

来源：

GEOMECHANICS FROM MICRO TO MACRO, VOLS I AND II | 2015年

关键词：

BAND;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The effect of the mean grain diameter on vortices, force chains and local volume changes within shear zones in initially dense cohesionless sand for quasi-static earth pressure problems of a retaining wall was analyzed with a Discrete Element Method DEM. The passive sand failure for a very rough retaining wall undergoing horizontal translation towards the sand backfill was discussed. To simulate the behaviour of sand, the three-dimensional spherical discrete model YADE developed at University of Grenoble was used. The material parameters were calibrated with the aid of a typical homogeneous triaxial compression test without shear localization. The relationships between vortices, local void ratio changes and force chains in shear zones were carefully investigated.

引用

页码：177 / 182

页数：6