| 摘要 |
The invention concerns a road culvert in which there are two or more culvert pipes 1, 2. In the road culvert according to the invention, the inlet opening 3 of at least one culvert pipe 2 is situated higher up than the main inlet opening 4 formed by the other culvert pipe 1 of the road culvert. By means of the invention it is possible to avoid freezing of the road culvert, which is the most serious disadvantage of the known road culverts. <IMAGE> |
