SEEPAGE WATER DRAINAGE FACILITY FOR WATER-PERMEABLE ASPHALT PAVED ROAD AND ITS EXECUTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a water-permeable asphalt paved road excellent in the draining effect of seepage water over the whole width of a road surface. ;SOLUTION: First channels B1-B5 extending multiple non-tread pressure portion zones b1-b5 rarely receiving the compressive loads of passing vehicles by the required lengths in the longitudinal direction of a road and a second channel C extending along the transverse direction of the road to communicate and connect all first channels B1-B5 to a water collecting discharge cannel 7 at a road shoulder section or a central separation zone are made of a non- buckling water-permeable structural material. Sets of the first channels B1-B5 and second channels C are buried at the interval pitches P corresponding to the longitudinal grade of the road at the boundary section between a water- permeable surface layer 3 and a water-nonpermeable base layer 2 or a concrete floor board 31. The seepage water from the surface layer 3 can naturally flow into the water collecting discharge cannel 7 at the road shoulder section through the first and second channels B1-B5 and C.;COPYRIGHT: (C)2000,JPO