Underground drainage system

E - Fixed Constructions – 03 – F

Patent

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E03F 5/10 (2006.01) E02B 11/00 (2006.01) E03F 1/00 (2006.01)

Patent

CA 2179150

An underground drainage system comprising piping and stor- age tanks (4) made from perforated wall modules (8) to form the desired size and configuration, which is wrapped in a water perme- able geotextile (9). The system is preferably buried in clean sand (10), whereby rain water and runoff water is directed to flow through the water permeable geotextile (9) through the perforated wall mod- ules (8) and into the piping (4) where the thus filtered water can travel along the piping (4) to flow back through the walls of the pip- ing (4) into the first available strata where the surrounding ground is not saturated.

L'invention concerne un système de drainage souterrain. Ce système comporte des canalisations et des cuves de stockage (4) constituées de modules à parois perforées (8) présentant la taille et la configuration requises, et enveloppées dans un géotextile perméable à l'eau (9). Le système est, de préférence, enterré dans du sable propre (10). L'eau de pluie et l'eau d'écoulement sont ainsi dirigées pour s'écouler à travers le géotextile perméable à l'eau (9) à travers les modules à parois perforées (8) et dans la canalisation (4). Dans cette dernière, l'eau ainsi filtrée peut se déplacer pour recirculer à travers les parois de la canalisation (4) et retourner dans la première couche disponible dans laquelle le sol environnant n'est pas saturé.

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