Estimation of saturated hydraulic conductivity from ring infiltrometer test taking into account the surface moisture stain extension

Abstract

A large single-ring infiltrometer test was performed in order to characterize the saturated hydraulic conductivity below an infiltration basin in the well field of Lyon (France). Two kinds of data are recorded during the experiment: the volume of water infiltrated over time and the extension of the moisture stain around the ring. Then numerical analysis was performed to determine the saturated hydraulic conductivity of the soil by calibration.

Keywords

• ring infiltrometer test
• infiltration basin
• numerical modeling
• saturated hydraulic conductivity
• anisotropy of hydraulic conductivity