EXPERIMENTAL AND NUMERICAL STUDY ON RAINFALL INFILTRATION AND SOLUTE TRANSPORT IN MODEL SLOPE

Abstract

Illegal dumping at the mountainside is one of serious problem in Japan. However, the conventional approaches to the groundwater pollution problem mainly focus on the urban area or flat land. In this study, it was investigated that the change of water content and solute transport caused by rainfall infiltration in the model slope by experiment and numerical analysis. The results show that the change of pore pressure was reproduced well by numerical analysis, and peak value of the concentration at the points near the source was also reproduced well. But, the calculated value of the concentration at the point far from the source was different from measured value.