Effect of Particle Shape on the Mechanical Behavior of Natural Sands

被引：285
作者：
Altuhafi, Fatin N. [1 ]
Coop, Matthew R. [2 ]
Georgiannou, Vasiliki N. [3 ]
机构：
[1] UCL, Earth Sci, Kathleen Lonsdale Bldg,Gower St, London WC1E 6BT, England
[2] City Univ Hong Kong, Dept Civil & Architectural Engn, Geotech Engn, Kowloon, Hong Kong, Peoples R China
[3] Natl Tech Univ Athens, Iroon Polytechniou 9, Zografos 15780, Greece
来源：
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING | 2016年 / 142卷 / 12期
关键词：
Sand; Particle shape; Dynamic imaging analysis; Angularity; Critical state; Stiffness; SHEAR MODULUS; STRENGTH; STIFFNESS; SOILS; COMPRESSION; ANGULARITY; PARAMETERS; ROUGHNESS; DILATANCY; EXAMPLE;
D O I：
10.1061/(ASCE)GT.1943-5606.0001569
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A database of the mechanical behavior of 25 natural sands was compiled from the existing literature. Particle shape and size analysis, obtained by dynamic imaging analysis, for each material in the database has subsequently been linked to its mechanical properties; selected sands were also subject to interferometry study for particle surface roughness measurements. This paper reviews the effect of the particle shape properties of these sands on their Critical State and stiffness parameters, introducing a new parameter to optimize the correlations.
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页数：15
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