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Soil-water Characteristic Curve Assessment Using a Reference State Concept  

성상규 (롯데건설(주))
이인모 (고려대학교 토목환경공학)
이형주 (삼성건설 토목영업)
조국환 (고려대학교 부설 방제기술연구센타)
Publication Information
Journal of the Korean Geotechnical Society / v.20, no.5, 2004 , pp. 27-35 More about this Journal
Abstract
The goal of this study is to investigate the feasibility of the reference state approach in determining the generalized soil-water characteristic curve that is essential fur characterization of unsaturated soil behavior. The soil-water characteristic curves are obtained from a number of specimens of fine-grained residual soils compacted with different void ratios. Based on the experimental test results, the feasibility of using the liquid limit state as the reference state for predicting the soil-water characteristic curve is verified. Finally, through the regression analysis of experimental data using the equation of Fredlund and Xing (1994), a reliable method is proposed to predict the generalized soil-water characteristic curve of fine-grained residual soils using the liquid limit state as the reference state.
Keywords
Liquid limit; Matric suction; Prediction model; Reference state approach; Soil-water characteristic curve;
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