| 摘要 |
A drainage system of an unpermeable road is provided to have a primary filtration function for preventing the inflow of soil, garbage, etc. from a road surface to a manhole, to form pleasant road environment by spreading with turf, and to reduce heat island effect and to reduce noise by dispersing heat, to reduce the necessity of cleaning a drainage way by gathering water of a road surface and filtering or separating waste water or deposits of a road surface, and to prevent illegal parking on the edge of a road. A drainage system(100) of an unpermeable road comprises a side ditch-channel pipe installed to have the same height as an auxiliary base layer of a roadway(110) or to be higher or lower than the auxiliary base layer within the range of an error of 10cm, a manhole(130) formed on the top of the side ditch-channel pipe to make the cover to be lower than a surface layer of the roadway, a precipitation grating(140) installed on the top of the side ditch-channel pipe in the same height as the top of the manhole or a bit higher than the top of the manhole to cover up the manhole completely or partially and to prevent the inflow of soil, garbage, etc. directly to the manhole, and a grass block(150) formed on the remaining part of the side ditch-channel pipe without the precipitation grating to be lower than the surface of the roadway and formed according to a gradient of the roadway to make rainwater flow in the manhole. |
