In order that it possesses the drainage canal which extends to the curb equipped orbicular side

摘要

PROBLEM TO BE SOLVED: To provide a circular side ditch with a curb, and a drainage structure using the circular side ditch with the curb avoiding interference with various embedded objects installed near the curb while ensuring a water collecting function even if the curb is installed on the circular side-ditch.;SOLUTION: The circular side ditch 1 with the curb comprises a block body 2 having a drain passage 4 inside and formed with a plurality of water passages 5, and the curb 3 mounted to the upper face 2a of the block body. The curb 3 and the block body 2 are formed to be mountable by changing relative positions in a transverse direction. In the mounted state of the curb 3 in any position out of an intermediate part, one end and the other end in the transverse direction of the upper face 2a, the upper openings of the plurality of water passages 5 are formed in positions where the upper openings are not partially blocked with the curb 3.;COPYRIGHT: (C)2007,JPO&INPIT