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http://dx.doi.org/10.5762/KAIS.2018.19.1.56

Variation of strength of soil matrix with artificially manipulating particle distribution of granular soil  

Moon, Jun-Ho (Department of Civil and Environmental Engineering, Myongji University)
Xin, Zhen-Hua (Department of Civil and Environmental Engineering, Myongji University)
Kim, Gab-Boo (Busiddol Inc.)
Moon, Sun-Mi (Busiddol Inc.)
Kim, Young-Uk (Department of Civil and Environmental Engineering, Myongji University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.1, 2018 , pp. 56-62 More about this Journal
Abstract
In this study, an artificially formed Gap graded soil, designed to increase its shear strength, was analyzed to determine the strength parameters through direct shear tests. Uniform and fine grain size samples were compared to the Gap graded soil to investigate the increase in the shear strength. Plate loading tests were conducted using 13mm and 19mm aggregates to confirm the reproducibility of the strength enhanced samples for site application. This test confirmed that the particle size ratio and the internal friction angle are correlated to the shear strength, and the shear resistance angle significantly increased in the specific particle size ratio range. The calculation of the ultimate bearing capacity by the plate load test demonstrated that the grain size adjustment method greatly influences the strength increase rate. Therefore, the findings were verified and it was confirmed that a high shear strength is achievable despite the existence of a poor particle size distribution.
Keywords
Aggregate; Gap grade; Plate load bearing test; Shear strength test; Strength parameter;
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Times Cited By KSCI : 1  (Citation Analysis)
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