Unsaturated Hydraulic Properties of Non-woven Geotextile Based on Tilted Capillary Test

Abstract

To evaluate the mechanism of hydraulic barrier system by using geotextile, more precise hydraulic properties of geotextile are needed. This paper describes the modification method based on capillary rise principle to obtain geotextile water retention curve. This method is mainly purposed to obtain more data to draw the curve in both drying and wetting process. Detail procedure will be explained and the result will be presented and verified using conventional method. Obtained geotextile water retention curve was used to evaluate one dimensional infiltration ponding in soil-geotextile columns as hydraulic barrier in unsaturated condition.