%0 Journal Article
%T Soil-Water Characteristic Curve Modeling at Low Water Content: Empirical and Semi-Empirical Approaches
%+ LAME
%+ Laboratoire de Mécanique et Génie Civil (LMGC)
%+ Couplages en Géomécanique et Biomécanique (CGB)
%A Kébré, Marcel Bawindsom
%A Ouedraogo, Francois
%A Betaboalé, Naon
%A Zougmoré, François
%A Cherblanc, Fabien
%< avec comité de lecture
%@ 2347-5013
%J International Journal of Engineering Research
%I Jaikaran Singh
%V 2
%N 7
%P 432-437
%8 2013
%D 2013
%K soil
%K water
%K arid
%K modelling
%K empirical
%K semi-empirical
%Z Engineering Sciences [physics]/Civil EngineeringJournal articles
%X In this paper, we evaluate the performance of the most widely used semi-empirical models (van Genuchten (1980), Fayer and Simmons (1995) and Fredlund and Xing (1994)) and, an empirical model, the Modified Kovacs (MK) model for the determination of soil-water characteristic curve at the low water contents of two horizons of a soil from Burkina Faso. Combining terms from capillary state and adsorbed state of soil water gives a physical basis for the Modified Kovacs model. Our study confirms that the use of semi-empirical models requires somewhat large dataset covering the entire range of water content while the empirical model MK requires only basic geotechnical properties of soil and a few experimental points to adjust the parameters m and ac of the model. It appears that the MK model, by its simplicity and lower cost for the acquisition of experimental data, is the most appropriate.
%G English
%2 https://hal.science/hal-00948643/document
%2 https://hal.science/hal-00948643/file/Soil-water_characteristic_Kebre_al.pdf
%L hal-00948643
%U https://hal.science/hal-00948643
%~ CNRS
%~ LMGC
%~ GENIECIVIL
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021