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http://dx.doi.org/10.7843/kgs.2006.22.8.89

The Thickness of Shear Zone in Granular Materials Using Digital Image Processing  

Min, Tuk-Ki (Dept. of Civil and Environmental Engrg., Univ. of Ulsan)
Kim, Chi-Young (Dongil Engrg. Consultants Co., Ltd.)
Publication Information
Journal of the Korean Geotechnical Society / v.22, no.8, 2006 , pp. 89-97 More about this Journal
Abstract
This study investigated the effect of relative density on the thickness of shear zone. Digital image processing was used to measure the thickness of shear zone under plane strain conditions. A suitable epoxy resin was injected into the sample and the thickness of the shear zone was investigated. Four independent condition samples were prepared and the thickness of the shear zone was measured. The results indicated that the thickness of shear zone increases as the initial density of sample increases, and during the shear, the void ratios of the shear zone were changed, but the thickness of shear zone was not changed. In addition, the result of measurement of the thickness showed that the thickness of shear zone was almost fixed before critical state, but beyond critical state, the thickness of shear zone sharply increases as relative density increases.
Keywords
DIP; Direct shear test; Epoxy resin; Shear zone; Thickness of shear zone;
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