| 摘要 |
The invention relates to a drainage channel, road gulley or similar drainage device which can be installed in the ground, comprising a bottom surface (4) and side walls (6) which have outwardly projecting supporting structures (8) which support bearing surfaces (10) for bearing a covering, in particular a grating, in a vertical direction RV, wherein at least groups of the supporting structures (8) have base portions (12) which are arranged to be higher and thus closer to the bearing surfaces (10) than the bottom surfaces (4) and which are designed in such a way that, after lining with and/or casting into in situ concrete (30), these base portions (12) form additional supports for the bearing surfaces (10). |
