Evolution of the particle shape of sands under ring shear

DOI

10.2991/isaeece-17.2017.17How to use a DOI?

Keywords

particle shape; roundness; flatness; calcareous sand

Abstract

The particle shape is a key factor in the strength and compatibility of granular material. To investigate the evolution of the particle shape of two kind of sands. The quartz sand from Fujian and the calcareous sand from the South China Sea, were chosen for ring shear tests. The sieving method and laser grain-size analyzer were used to obtain the particle size distribution, and the microscope technique were employed to characterize the particle shape in terms of roundness and flatness. The experimental results indicate that the change of the particle size of the calcareous sand is more significant than the quartz sand. The roundness and flatness of the calcareous sand particles decreased obviously while the roundness of the quartz sand was scarcely changed and the flatness increased. It is shown that the large displacement shear makes the calcareous sand more rounded and quartz sand more roughed.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jianqiao He
AU  - Houzhen Wei
AU  - Jianjun Wang
AU  - Huodong Chen
PY  - 2017/03
DA  - 2017/03
TI  - Evolution of the particle shape of sands under ring shear
BT  - Proceedings of the 2017 2nd International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 2017)
PB  - Atlantis Press
SP  - 89
EP  - 95
SN  - 2352-5401
UR  - https://doi.org/10.2991/isaeece-17.2017.17
DO  - 10.2991/isaeece-17.2017.17
ID  - He2017/03
ER  -