| 摘要 |
<p>The conduit has a large transverse cross-section, constituted by the assembly onto an installation surface of a plurality of prefabricated longitudinal elements placed one after another and comprising, in cross-section, a lower base and a roof comprising two lateral edges linked to the base by leak-tight longitudinal joining members. …<??>According to the invention, the longitudinal joining members are constituted by two parallel metal sectional bars linked rigidly together by at least one bracing part and fixed onto a slab 1 constituting the base of the conduit, and the roof is constituted by at least one thin wall element and is fixed in a leak-proof fashion by its two lateral edges along the two longitudinal sectional bars. …<??>The invention applies especially to the production of a conduit for conveying a fluid under pressure, for example for water supply, urban heating or pen stocks. …<IMAGE>… </p> |
