TECHNIQUE OF PLANNING AND EVALUATION OF THE FACILITIES OF RAINWATER STORAGE AND INFILTRATION

AT THE NEW CAMPUS OF KYUSHU UNIVERSITY

Abstract

Change in the land use induces the reduction of rainwater infiltration and the increase of surface runoff. It is therefore important to minimize the influence of land use alteration on the infiltration and river discharge. In this research, the facilities of rainwater storage and infiltration for groundwater conservation was planned at the University of Kyushu, and the time series of infiltration of the facilities was calculated by the set of the water balance equations. From this study, the ability of the facilities for rainwater infiltration and flood control was proven. It is expected that the present approach could be useful for designing the facilities of rainwater and infiltration.