| Title |
Effects of Overburden Pressure and Clay Content on Water Retention Characteristics of Unsaturated Weathered Soils |
| Keywords |
unsaturated soil;overburden pressure;clay content;soil-water retention;unsaturated soils;불포화토;상재하중;점토 함유량;함수특성;풍화토 |
| 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. |