Embankment dam and waterproofing method

E - Fixed Constructions – 02 – B

Patent

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Details

E02B 3/10 (2006.01) E02D 17/18 (2006.01) E02D 19/18 (2006.01) E02D 5/18 (2006.01)

Patent

CA 2354848

The dam comprises a body (11) made of loose material, for example earth and/or rocks (A), and a water barrier (12) axially extending to the dam body (11), comprising a waterproofing layered membrane (13) and a zone of waterpermeable loose material (B), on at least one side of the membrane (13), which can be injected with a sealing fluid and is designed to avoid puncturing of the membrane (13) and to allow the monitoring of the leakage waters due to failures in the waterproofing membrane (13). The water barrier (12) can be provided inside the dam body or close to the upstream face.

Le barrage comprend un corps (11) constitué d'un matériau en vrac, par exemple de la terre et/ou des roches (A), et une barrière d'eau (12) se prolongeant axialement jusqu'au corps (11) du barrage, comprenant une membrane d'imperméabilisation (13)en couches, et une zone de matériau en vrac perméable à l'eau (B), sur au moins un côté de la membrane (13), dans laquelle on injecte un fluide imperméabilisant et qui est conçue de façon à éviter la perforation de la membrane (13) et à permettre la surveillance des eaux de fuite dues à des défauts dans la membrane d'imperméabilisation (13). La barrière d'eau (12) peut être installée à l'intérieur du corps du barrage ou proche de la face amont.

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