WebD. G. Fredlund, A. Xing and S. Huang, “Predicting the Permeability Function for Unsaturated Soils Using the Soil-Water Characteristic Curve,” Canadian Geotechnical … WebAug 1, 1994 · The soil-water characteristic curve can be used to estimate various parameters used to describe unsaturated soil behaviour. A general equation for the soil-water characteristic curve is proposed. A nonlinear, least-squares computer program is used to determine the best-fit parameters for experimental data presented in the …
Equations for the soil-water characteristic curve
WebJan 13, 2024 · A Fredlund-Xing model is a self-starting type of nonlinear curve fitting model for fitting water retention characteristics using experimental data. If warnings are given during the estimation process, try to increase the iteration limit using control function. WebAug 1, 1994 · Predicting the permeability function for unsaturated soils using the soil-water characteristic curve. D. Fredlund, A. Xing, Shangyan Huang. Published 1 August 1994. Geology. Canadian Geotechnical … gurmeet singh edmonton
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Webdirectly to a permeability function related to matric suction. There is one permeability function for the desorption process and another function for the sorption process in an … WebJan 21, 2024 · Volumetric water content function can be defined by using any of the four functions in-built in Geostudio software, which are VWC data point function, Sample functions, Van Genuchten function and Fredlund-Xing function. Out of these, data point function (Table 1) and sample functions (Tables 2 and 3) are used in this study. WebNov 1, 2024 · A method for predicting drying-wetting and scanning soil-water characteristic curves (SWCCs) of a soil has been proposed, which mainly uses Fredlund and Xing’s SWCC function with the fitting parameters evaluated from the saturated permeability (k s), grain size distribution curve and plastic index (PI) of a soil.The usefulness of the method … gurmeet singh governor