SIDE DITCH BLOCK FOR DRAINAGE PAVEMENT, FORM THEREOF, AND DRAINAGE ROAD STRUCTURE

摘要

PROBLEM TO BE SOLVED: To increase the strength of a drainage unit to reduce the possibility that the unit may be damaged and to eliminate the need for a filter so as to eliminate the operation of installing the filter and reduce costs. SOLUTION: An inner cutout section is formed by a first cutout section where a cover receiving surface of a side ditch block is cut in the shape of a gutter and a second cutout section where the interior of a rising section is cut in such a way as to continue to the first cutout section. An outer cutout section where the outside of a sidewall is cut correspondingly to the inner cutout section is formed. A thin-walled section that is thinner than the rising section is formed between the inner cutout section and the outer cutout section. A plurality of water holes each in the form of a slit or a small hole are formed in the thin-walled section. COPYRIGHT: (C)2011,JPO&INPIT