BASIN, PARTICULARLY DEACTIVATION POOL FOR A NUCLEAR PLANT

摘要

The pool is provided with a tight lining consisting of metal sheets (6) welded to each other by their edges and supported by beams (2) each comprising two profiled sections (16, 17) providing a bearing surface (14) for the metal sheets (6) and three longitudinal channels. In the cross-section view, the first and the second profiled sections have each the shape of a U, the second section substantially narrower than the first one being secured by a the edge of its wings (18) to the bottom (19) of the latter to delimit an inspection channel (20) having a closed cross-section, and two drain channels (21) with an open cross-section. The bottom surface of the second profiled section (17), oriented outside the beam, is contained in a same plane as the edge of the wings (22) of the first profiled section (16) so as to form the bearing surfaces (14) for two metal sheets (6) at their weld bead (15) which makes them integral to each other.