Numerical modelling of plane strain tests on sands using a particulate approach

被引:71
作者
Powrie, W [1 ]
Ni, Q
Harkness, RM
Zhang, X
机构
[1] Univ Southampton, Sch Civil & Environm Engn, Southampton, Hants, England
[2] Univ Reading, Reading, Berks, England
[3] Univ Southampton, Sch Civil Engn & Environm, Southampton, Hants, England
来源
GEOTECHNIQUE | 2005年 / 55卷 / 04期
关键词
numerical modelling and analysis; sands;
D O I
10.1680/geot.55.4.297.65492
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
This paper describes the results of a series of numerical plane strain test simulations on a particulate material, carried out using the three-dimensional particle flow code PFC-3D. Samples comprised about 10 000 non-spherical particles, each formed by strongly bonding two spheres together. The simulations demonstrate the ability of such a model to capture the essential macro-features of soil behaviour as observed in laboratory tests, including the dependence of peak strengths on the initial void ratio relative to the critical. The development of strain localisations or shear bands associated with the use of rough loading platens, and the sensitivity of the model to the initial sample porosity, particle shape factor and interparticle friction angle, were also investigated.
引用
收藏
页码:297 / 306
页数:10
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