TY - JOUR
T1 - Exponential functions for modelling hysteresis of soil-water characteristic curves
AU - Satyanaga, Alfrendo
AU - Kim, Jong
AU - Moon, Sung Woo
AU - Wijaya, Martin
N1 - Publisher Copyright:
© The Authors, published by EDP Sciences 2020.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/10/16
Y1 - 2020/10/16
N2 - Soil - water characteristic curve (SWCC) is an important property of unsaturated soils that can be used to estimate various parameters to describe unsaturated soil behavior. SWCC is reported to be hysteretic because the water content at a given suction in the wetting process is less than that in the drying process. In order to simulate the hysteretic characteristics of SWCC, many models have been proposed by different researchers. However, majority of the existing models are complex and their parameters are not related to the physical significances of SWCC variables. In this study, the new equations are developed to model drying and wetting SWCC. In addition, some indexes are proposed to estimate the wetting SWCC from drying SWCC. The new equations for SWCCs were evaluated with the laboratory data from published literatures. The results showed that the proposed equations performed well in modelling drying and wetting SWCC. The new equation has less parameters than the existing published equation.
AB - Soil - water characteristic curve (SWCC) is an important property of unsaturated soils that can be used to estimate various parameters to describe unsaturated soil behavior. SWCC is reported to be hysteretic because the water content at a given suction in the wetting process is less than that in the drying process. In order to simulate the hysteretic characteristics of SWCC, many models have been proposed by different researchers. However, majority of the existing models are complex and their parameters are not related to the physical significances of SWCC variables. In this study, the new equations are developed to model drying and wetting SWCC. In addition, some indexes are proposed to estimate the wetting SWCC from drying SWCC. The new equations for SWCCs were evaluated with the laboratory data from published literatures. The results showed that the proposed equations performed well in modelling drying and wetting SWCC. The new equation has less parameters than the existing published equation.
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U2 - 10.1051/e3sconf/202019502002
DO - 10.1051/e3sconf/202019502002
M3 - Conference article
AN - SCOPUS:85097149955
SN - 2555-0403
VL - 195
JO - E3S Web of Conferences
JF - E3S Web of Conferences
M1 - 02002
T2 - 4th European Conference on Unsaturated Soils, E-UNSAT 2020
Y2 - 19 October 2020 through 21 October 2020
ER -
