Showing papers by "Delwyn G. Fredlund published in 2001"
TL;DR: In this paper, a number of mathematical models have been proposed in the literature to represent soil-water characteristic curve data and the significance of each of the associated soil parameters is illustrated.
Abstract: Numerous mathematical models have been proposed in the research literature to represent soil—water characteristic curve data. A number of proposed mathematical models are summarized and the significance of each of the associated soil parameters is illustrated. The advantages and disadvantages of the various mathematical models are outlined. The derivatives for each of the model equations are presented along with comments regarding the efficiency of the best-fit regression procedures.
166 citations
TL;DR: In this article, a nonlinear, least squares method was used to determine best-fit parameters for several empirical equations for the soil-water characteristic curve, and a number of empirical equations have been proposed.
Abstract: A number of empirical equations have been proposed for the soil-water characteristic curve. A nonlinear, least squares method was used to determine best-fit parameters for several empirical equatio...
112 citations
08 Oct 2001
TL;DR: In this paper, a numerical model is presented to predict the volume change in an expansive soil as a result of vegetation and environmental changes, based on the general theory of unsaturated soil behavior.
Abstract: This paper presents a numerical model to predict the volume change in an expansive soil as a result of vegetation and environmental changes. The model formulation is based on the general theory of unsaturated soil behavior. Three typical volume change situations associated with water uptake by tree roots and water infiltration into soils due to watering at surface are presented.
31 citations
01 Jan 2001
16 citations