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A Study on the Analysis of the Slope Stability Considering Clay Filling in Discontinuity  

Min, Kyong-Nam (대원토질(주) 엔지니어링사업본부)
Ahn, Tae-Bong (우송대학교 철도건설환경공학과)
Yang, Seung-Jun (대원토질(주) 엔지니어링사업본부)
Baek, Seon-Gi (대원토질(주) 엔지니어링사업본부)
Lee, Tae-Sun (대원토질(주) 엔지니어링사업본부)
Publication Information
Tunnel and Underground Space / v.17, no.3, 2007 , pp. 175-185 More about this Journal
Abstract
When filling material such as clay is included along the discontinuity, it may cause instability on a slope even if the direction of discontinuity works in a positive way. In the study area, slope sliding occurred at the boundary between a clay filling material and weathered soil because the physical properties differ across the boundary; and this is very similar to the situation where foliation in a rock works as a weak zone during a structural behavior, causing an inter-layer slip. In most analysis, if there exists a clay filling material, a single discontinuity is assumed to perform analysis. In those cases, the discontinuity is modeled as a slip surface within clay. Therefore, the characteristics of the boundary are not considered in the analysis, so that ultimately the physical property of clay usually prevails. The result of evaluating the slope stability affected by clay filling material shows the significant difference in the safety level due to the strength parameter depending on the failure type of the discontinuity by a filling material.
Keywords
Discontinuity; Clay filling material; Failure type; Strength parameter;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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