Effect of grain size distribution on the shear properties of sand

Hong Guo; Hong Guo; Shaofei Wang; Shaofei Wang; Chen Guo; Chen Guo; Kuibin Yang; Kuibin Yang; Rui Guo; Rui Guo; Jiangtao Fu; Jiangtao Fu; Yalin Nan; Yalin Nan; Mingjiang Tao

doi:10.3389/fmats.2023.1219765

Frontiers in Materials (Jun 2023)

Effect of grain size distribution on the shear properties of sand

Hong Guo,
Hong Guo,
Shaofei Wang,
Shaofei Wang,
Chen Guo,
Chen Guo,
Kuibin Yang,
Kuibin Yang,
Rui Guo,
Rui Guo,
Jiangtao Fu,
Jiangtao Fu,
Yalin Nan,
Yalin Nan,
Mingjiang Tao

Affiliations

Hong Guo: School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong, China
Hong Guo: Research Center of Geotechnical Environment and Geological Hazards Control in Qinling-Daba Mountains, Shaanxi University of Technology, Hanzhong, China
Shaofei Wang: School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong, China
Shaofei Wang: Research Center of Geotechnical Environment and Geological Hazards Control in Qinling-Daba Mountains, Shaanxi University of Technology, Hanzhong, China
Chen Guo: School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong, China
Chen Guo: Research Center of Geotechnical Environment and Geological Hazards Control in Qinling-Daba Mountains, Shaanxi University of Technology, Hanzhong, China
Kuibin Yang: School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong, China
Kuibin Yang: Research Center of Geotechnical Environment and Geological Hazards Control in Qinling-Daba Mountains, Shaanxi University of Technology, Hanzhong, China
Rui Guo: School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong, China
Rui Guo: Research Center of Geotechnical Environment and Geological Hazards Control in Qinling-Daba Mountains, Shaanxi University of Technology, Hanzhong, China
Jiangtao Fu: School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong, China
Jiangtao Fu: Research Center of Geotechnical Environment and Geological Hazards Control in Qinling-Daba Mountains, Shaanxi University of Technology, Hanzhong, China
Yalin Nan: China Electronic Research Institute of Engineering Investigations and Design, Xi’an, China
Yalin Nan: Shaanxi Provincial Soil Engineering Technology Research Center, Xi’an, China
Mingjiang Tao: Department of Civil and Environmental Engineering, Worcester Polytechnic Institute, Worcester, MA, United States

DOI: https://doi.org/10.3389/fmats.2023.1219765
Journal volume & issue: Vol. 10

Abstract

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In this study, we investigated the effect of particle size distribution on the shear properties of sand. Direct shear tests were conducted using four types of sand samples with different particle size distributions obtained from standard sand produced by Xiamen ISO Co. Ltd. The results show that the influence of particle size distribution on the internal friction angle was significant. Typically, the internal friction angle increases with increasing the coefficient of non-uniformity (Cu) and decreasing the curvature coefficient (Cc). The discrete element results show that the initial particle size distribution significantly affects the porosity, coordination number, and particle slide fraction. In addition, the grey relation analysis revealed that the sliding fraction and coordination number have the greatest correlation with the internal friction angle. The research results of this study help to understand the changes in particle contact, internal stress, and particle sliding during the shear failure process of sand.

Published in Frontiers in Materials

ISSN: 2296-8016 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Technology
Website: https://www.frontiersin.org/journals/materials

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