Manhole base with cunette for underground ducts, its method of manufacture, and manholes comprising such a base

摘要

Manhole base with cunette, for underground ducts, characterised in that it comprises a tubular body 1, for example cylindrical, made of a rigid plastic material, and a collecting pipe 2 passing transversely through the space delimited by this body, and openings 4a, 4b formed in the lateral wall of the latter, this pipe comprising an upper access opening 3 of elongate shape, in its portion 2a housed inside the said tube, the lower part of which is closed in a sealed manner. IMAGE