抄録
The vertical infiltration experiments was executed to understand quantitatively the processes of rainfall infiltration, groundwater runoff and ascent of the groundwater level. The transferal model of the storm water in the unsaturated soil was proposed based on the results of the experiments. The transferal conditions of the storm water was simulated by this model. Following matters were confirmed by this study.
(1) The groundwater runoff and the suction come up to steady conditions at the sametime. The infiltration proceeds under equilibrium conditions.
(2) As the unsaturated zone decreases, the ascent of the groundwater level grows faster.
(3) It was shown that this model simulated accurately the results of the experiments. This model can be used as a part when a practical model to predict the occurrence sites of hillside landslides is built.
