1996 Volume 40 Pages 69-74
A gravel storage-infiltration method, which make a part of the surface rainfall runoff infiltrate into the soil layer with the aid of gravel layer which inserted artificially in the underground, is proposed to reduce the flood discharges and to prepare the environmental water in urbanizing area. The mechanisms of infiltration from the inserted gravel layer are clarified by numerical analysis.
In addition, assuming a case where this facility is settled in the residential area of Uji city, a rainfall runoff analysis is conducted and the practicability of this method is examined.
