A simplified model for the infiltration of rainwater in natural slope consisting of fine sands

Abstract

  To develop a real-time evaluation of temporal degradation of the total factor of safety in natural slopes subjected to short-term heavy rainfall, Wakai et al. (2019) have proposed a simple prediction method for groundwater rising in shallow layer of natural slopes. In this study, an infiltration mechanism of fine sands will be analyzed by finite element analysis of saturated-unsaturated seepage. Additionally, a simple method for prediction of infiltrating rainwater in natural slopes in time history will be developed based on the parametric studies with the finite element analysis under the assumption of semi-infinite homogeneous slope.