Numerical study of infiltration into a soil–geotextile column

摘要

The hydraulic response to infiltration of geotextiles embedded in a sandy soil isnexamined. An experiment examining infiltration in a one-dimensional, homogeneous sand column isnsimulated using the finite element method, and functions for the hydraulic properties of thenunsaturated porous media that incorporate hysteresis are examined. The numerical procedure is usednto model infiltration into a sand column containing a geotextile layer, and the numerical results arencompared with the experimental data. To provide insight into the hydraulic behaviour of thesensystems, the calibrated model is then used to perform a series of numerical experiments for differentnsoil and boundary conditions. Finally, based on these results, the hydraulic behaviour of a onedimensional,nsoil–geotextile layered system during infiltration is discussed.