Apparatus intended to be buried in ground beneath water

Details Apparatus intended to be buried in ground beneath water Apparatus intended to be buried in ground beneath water

E - Fixed Constructions

02

D

E02D 19/04 (2006.01) E02D 7/24 (2006.01) E02D 23/08 (2006.01) E02D 27/52 (2006.01) F16L 55/18 (2006.01)

Patent

CA 2090823

Apparatus such as a cofferdam 1, intended to be partially buried in ground beneath water comprises a hollow structural framework. The framework includes chambers 12 which have inlets 29 via which pressurised water can be supplied to the chambers. Each chamber 12 communicates with a plurality of nozzles 36 from which jets of the pressurised fluid issue to break up the ground below. Each chamber 12 also communicates with a plurality of water operated pumps 25 via inlets 24. The pumps 25 are operated by the pressurised water to draw or suck water-suspended solids from below through the pumps via the inlets 32 and discharged from the pumps via outlets 28.

La présente invention vise un ouvrage, tel un batardeau (1), destiné à être partiellement enfoui dans le fond marin et constitué d'une ossature creuse. L'ossature en question est composée d'un ensemble de chambres (12) comportant un orifice d'entrée (29) par où de l'eau sous pression peut être injectée. Chaque chambre (12) communique avec un ensemble d'ajutages (36) par où le fluide sous pression est éjecté aux fins de creusage du sol sous-jacent. Chaque chambre (12) communique également avec une pluralité de pompes à eau (25) par les orifices 24. Les pompes sont actionnées par l'eau sous pression et servent à aspirer, par les orifices 32, les solides en suspension dans l'eau, et à les refouler par les orifices 28.

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