Prediction of Coefficient of Permeability of Unsaturated Soil

A simple technique is proposed in this paper for estimating the coefficient of permeability an unsaturated soil based on physical properties soils that include grain size analysis, degree saturation or water content, and porosity soil. The method requires soil-water characteristic curve prediction as most conventional methods. procedure to define hydraulic conductivity function from which measured by filter method. Fitting methods are applied through program (SoilVision), after indentifying basic such Attereberg limits, specific gravity, void ratio, porosity, wet dry unit weights.