| 摘要 |
The invention relates to a prefabricated part for throughflow channels in manholes, which part can be connected, by its two ends, to an incoming and an outgoing channel, respectively, by means of manhole tie couplings, the channel being straight and/or curved in outline and, in particular, being in the form of a clothoid. The part has, at one end, a connection for a larger nominal width and, at its other end, a connection for a smaller nominal width and this can be inserted between the channels as a transition piece for the different nominal widths and can be coupled to said channels.
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