... to the capillary barrier effect under unsaturated soil conditions and can function as a drainage material only once the soil immediately above it is nearly saturated. In this study, numerical models of unsaturated slopes with nonwoven geotextile drains, subjected to rainfall infiltration were developed...

.... The specimens were placed in 2 m high, one-dimensional sand columns and subjected to constant head water infiltration loading. Conductivity probes and tensiometers were used to record the unsaturated–saturated response of the sand–geotextile layers and a control column with sand only. The test results showed...

...E. F. Garcia; C. P. K. Gallage; T. Uchimura ABSTRACT This paper presents laboratory tests and experiments using scale models to study the hydraulic behavior of permeable geosynthetics within unsaturated embankments subjected to rainfall infiltration. Water retention curves were measured...

...T. Iryo; R. K. Rowe The hydraulic response to infiltration of geotextiles embedded in a sandy soil is examined. An experiment examining infiltration in a one-dimensional, homogeneous sand column is simulated using the finite element method, and functions for the hydraulic properties...