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http://dx.doi.org/10.7843/kgs.2017.33.6.37

A Simple Method for Estimating Wetting Path of Soil Water Characteristic Curve on Unsaturated Soils  

Park, Hyun-Su (Dept. of Civil & Environment Eng., Dankook Univ.)
Kim, Byeong-Su (Graduate School of Environment & Life Science, Okayama Univ.)
Park, Seong-Wan (Dept. of Civil & Environment Eng., Dankook Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.33, no.6, 2017 , pp. 37-48 More about this Journal
Abstract
Soil-water characteristic curve (SWCC) has been widely used to estimate the shear strength and coefficient of permeability for unsaturated soils. In general, it is divided into the drying path in which the water is discharged and the wetting path in which the water is permeated, and it has a hysteresis indicating different suctions at the same volumetric water content. In reality the field behavior of unsaturated soils is much closer to the wetting path during the infiltration. The drying path has been practically used for various analyses because obtaining the wetting path takes longer than the drying path. Although many approaches for estimating wetting path have been studied till now, these are complex and do not fit well. Therefore, a simple method for estimating wetting path based on empirical approach in this study is proposed in unsaturated soils, and a feasibility study is conducted as well.
Keywords
Soil-water characteristic curve; Hysteresis; Wetting path; Unsaturated soils;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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