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http://dx.doi.org/10.7843/kgs.2009.25.4.39

Characteristics of Shear Behavior for Coarse Grained Materials Based on Large Scale Direct Shear Test (III) - Final Comprehensive Analysis -  

Lee, Dae-Soo (Korea Electric Power Research Institute)
Kim, Kyoung-Yul (Korea Electric Power Research Institute)
Hong, Sung-Yun (Korea Electric Power Research Institute)
Oh, Gi-Dae (Korea Electric Power Research Institute)
Jeong, Sang-Seom (Dept. of Civil Eng., Yonsei Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.25, no.4, 2009 , pp. 39-54 More about this Journal
Abstract
Large scale direct shear tests were carried out to analyze the shear behavior of crushed rocks at local representative quarries. Shear strength for each specimen was derived and the effects on shear behavior induced by the variation of factors such as particle size, water immersion, density, uniformity coefficient, and particle breakage were evaluated and quantitatively compared with previous studies. The opportunity was also taken to identify stress-dilatancy relation of crushed rocks following the energy-based theory and friction coefficients at critical state as well as peak friction angles and dilation angles were estimated. As a result of tests it was found that uniaxial compressive strength and particle breakage of the parent rocks have crucial effect on internal friction angles; in addition, dilatancy at the failure showed strong relationship as well.
Keywords
Crushed rock; Dilatancy; Direct shear test; Friction coefficient; Large scale; Shear behavior;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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