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http://dx.doi.org/10.12652/Ksce.2010.30.1C.053

Effects of Overburden Pressure and Clay Content on Water Retention Characteristics of Unsaturated Weathered Soils  

Park, Seong-Wan (단국대학교 토목환경공학과)
Park, Jai-Young (단국대학교 토목환경공학과)
Tae, Doo-Hyung (단국대학교 토목환경공학과)
Sim, Young-Jong (한국토지주택공사 토지주택연구원)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.30, no.1C, 2010 , pp. 53-63 More about this Journal
Abstract
Since the water retention curve is considered as a major parameter to evaluate the unsaturated ground or soils, overburden pressure and clay content on soils underneath ground surface have not been considered for estimating water retention characteristics. Therefore, a need exists that the effect of overburden pressure and clay content on water retention characteristics was assessed in typical weathered soils found in Korea. Soil-Water Characteristic Curve and the unsaturated hydraulic conductivity were estimated using water retention characteristics under the condition of different overburden pressure, clay content, and de-saturation path. Then, these effects are evaluated with the results of SWCC tests from the laboratory. In addition to that, the unsaturated moisture capacity and diffusivity of each case is discussed.
Keywords
unsaturated soil; overburden pressure; clay content; soil-water retention; unsaturated soils;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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