| 摘要 |
The invention relates to a pipe suitable for use in a sewage system made from concrete and to be coupled with other pipes of the same type for the construction of a sewage system, and provided with a seamless inside wall, having rising side wall elements (9, 10) which in a cross-sectional view taper towards the bottom of the pipe and extend in a substantially straight course, which side wall elements merge into one another at the bottom side of the pipe to form a curved wall portion whose curve is defined by a first radius (11), and which at the top side of the pipe merge into one another to from a curved wall portion whose curve is defined by a second radius (12), the second radius being larger than the first radius. The first radius is more or less constant and small and independent of the second radius, and the inclination of the side wall elements with respect to a horizontal base is fixed at a constant value which is independent of the second radius. |
