Effluent filtration tank

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 88/06 (2006.01) B65D 88/76 (2006.01)

Patent

CA 2708046

The invention relates to a filtration tank to be buried and for containing wastewater in particular, wherein the tank (100) includes an envelope (110) comprising an upper portion (200) and a lower portion (300), the tank being provided in the inside with a means for reinforcing the structure of the envelope (110) so that it can withstand the pressure applied by the burying material when the tank (100) is buried and is not completely filled. According to the invention, the reinforcing means (600, 600') includes arches (610, 610') bearing against the upper portion (200), and the tank (100) includes means (650d, 670) for collecting the bearing stresses of the arches (610, 610') and for transferring them onto the bottom (310) of said tank. A tank can thus be obtained that withstands the burying without any deformation although it may be only partially filled.

La présente invention se rapporte à une cuve de filtration destinée à être enfouie pour contenir, en particulier, des eaux usées, la cuve (100) comportant une enveloppe (110) comprenant une partie supérieure (200) et une partie inférieure (300), la cuve étant pourvue intérieurement d'un moyen de renforcement de la structure de l'enveloppe (110) afin qu'elle puisse résister à la pression exercée par le matériau d'enfouissement lorsque la cuve (100) est enfouie et qu'elle n'est pas complètement remplie. Selon l'invention, le moyen de renforcement (600, 600') comprend des voussoirs (610, 610') prenant appui contre la partie supérieure (200) et en ce que la cuve (100) incorpore des moyens (650d, 670) pour reprendre les efforts de soutien des voussoirs (610, 610') pour les reporter sur le fond (310) de ladite cuve. On obtient ainsi une cuve qui supporte l'enfouissement sans se déformer bien qu'elle puisse n'être que partiellement remplie.

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