A STUDY ON EVALUATED THE PERFORMANCE OF THE PERMEABLE PAVEMENT INCONSIDERATION OF THE UNSATURATED SEEPAGE CHARACTERISTICS

Abstract

The permeability design in the design method of a permeable pavement makes the trial calculation of the road metal and pavement thickness to be used so that the permeavility capability demanded according to an application part may be satisfied. It is determined as compared with the structure required in a structural design. Saturated hydraulic conductivity is estimating the permeable ability in that case. However, the rainfall initial permeates in the state where a inside of pavement is unsaturated. Then, this research measured the water retention characteristics of a permeable pavement.