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Effect of Grain Size Distribution of Sandy Soil on Shearing Behaviors at Soil-Structure Interface
Han-Lin Wang1; Wan-Huan Zhou1,2; Zhen-Yu Yin3; Xi-Xi Jie4
Source PublicationJournal of Materials in Civil Engineering

For geotechnical construction and maintenance, assessing the shearing behavior at the soil–structure interface is significant. This study presents an experimental investigation into the effect of the grain size distribution of a sandy soil on the shearing behaviors at the soil–structure interface, using a modified direct shear apparatus. Five soil samples with different coefficients of uniformity were prepared. The normalized roughness of the structure surface (the ratio between the maximum roughness of the structure plate and the mean grain size of the soil); relative density; and maximum, mean, and minimum grain sizes of all samples were controlled in the same way. During the tests, the shear force, shear displacement, and vertical displacement were monitored. The results show that at a given shear displacement and normal stress, the sample with lower coefficient of uniformity Cu presented higher shear stress and more pronounced dilative behavior. The increase of Cu led to a decrease of the friction angle for the soil–structure interface (at both peak and ultimate states) and a decrease of the maximum vertical deformation of the soil sample during the shearing process. As Cu increased, the main force chain at the soil–structure interface turned from contact between the coarser grains to that mainly formed by the finer grains, resulting in a decrease of the shearing resistance. In comparison with the previous relevant studies, the decreasing trend of the friction angle with the increase of Cu is strongly supported.

KeywordSoil-structure Interface Grain Size Distribution Coefficient Of Uniformity Friction Angle Dilatancy
URLView the original
Indexed BySCIE
WOS Research AreaConstruction & Building Technology ; Engineering ; Materials Science
WOS SubjectConstruction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS IDWOS:000481581400016
Scopus ID2-s2.0-85070200286
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Document TypeJournal article
CollectionPersonal research not belonging to the institution
Corresponding AuthorWan-Huan Zhou
Affiliation1.State Key Laboratory of Internet of Things for Smart City,Dept. of Civil and Environmental Engineering,Univ. of Macau,Macao
2.Zhuhai UM Science and Technology Research Institute,Zhuhai, Guangdong,519080,China
3.Dept. of Civil and Environmental Engineering,Hong Kong Polytechnic Univ.,Hung Hom, Kowloon,Hong Kong
4.Dept. of Civil and Environmental Engineering,Faculty of Science and Technology,Univ. of Macau,Macao
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Han-Lin Wang,Wan-Huan Zhou,Zhen-Yu Yin,et al. Effect of Grain Size Distribution of Sandy Soil on Shearing Behaviors at Soil-Structure Interface[J]. Journal of Materials in Civil Engineering,2019,31(10).
APA Han-Lin Wang,Wan-Huan Zhou,Zhen-Yu Yin,&Xi-Xi Jie.(2019).Effect of Grain Size Distribution of Sandy Soil on Shearing Behaviors at Soil-Structure Interface.Journal of Materials in Civil Engineering,31(10).
MLA Han-Lin Wang,et al."Effect of Grain Size Distribution of Sandy Soil on Shearing Behaviors at Soil-Structure Interface".Journal of Materials in Civil Engineering 31.10(2019).
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