| 摘要 |
PROBLEM TO BE SOLVED: To provide a conduit structure with a road boundary block capable of efficiently draining rainwater on a road. SOLUTION: A conduit block 5 with an upper part opened shape is provided as a means of forming a conduit 4 for passing the rainwater and other drainage on a roadway 2 and a sidewalk 3. A lid block 6 is placed on an upper opening 5a of the conduit block 5 as a means of covering it. In the lid block 6, the road boundary block 7 is integrally protrusively formed on the surface, and it is provided with oblique holes 8-1 and 8-2 and lateral holes 9-1 and 9-2. In the oblique holes 8-1 and 8-2, one ends 8a are opened in a neighborhood of the road boundary block 7 of the lid block surface 6a, and another ends 8b are opened to a rear face of the lid block. In the lateral holes 9-1 and 9-2, one ends 9a are opened to side faces 6b of the lid block 6, and another ends 9b are opened to the oblique holes 8-1 and 8-2. COPYRIGHT: (C)2003,JPO
|
