18-07-2019 дата публикации
Номер: US20190218748A1
Described are a vessel and vessel/barge systems for dredging underwater surfaces. The vessel includes a hull with a bottom, bow portion, stern portion, port side, and starboard side. The vessel also includes a deck supported by the hull and a pump system mounted within the hull. A drag arm pivotably couples to the pump system. The vessel additionally includes a void defined by contiguous watertight walls or bulkheads joined to and extending upward from the bottom of the hull. The contiguous watertight walls or bulkheads are (i) vertically extensive of a perimeters of an aperture in the bottom of the hull, (ii) outboard, astern, and forward the aperture, or (iii) some combination thereof. The barge is releasably coupled to the vessel. Moreover, the barge is in fluidic communication with the drag arm. 1. A dredging system comprising: a hull including a bottom, bow portion, stern portion, port side and starboard side;', 'a deck supported by the hull;', 'a pump system mounted within the hull;', 'a drag arm pivotably coupled to the pump system, the drag arm configured to dredge an underwater surface;', 'a void defined by contiguous watertight walls or bulkheads joined to and extending upward from the bottom of the hull, the contiguous watertight walls or bulkheads being:', 'vertically extensive of a perimeter of an aperture in the bottom of the hull, outboard, astern, and forward the aperture, or', 'a combination thereof,, 'a vessel configured for trailing suction dredging, the vessel comprisingwherein the aperture and the void are dimensioned to accommodate pivoting of the drag arm from a raised position to a lowered position, the lowered position being an active dredging position.2. The dredging system of claim 1 , wherein the drag arm is located within the void when in the raised position.3. The dredging system of claim 1 , wherein the vessel further comprises:a port control mechanism located on a port portion of the deck, the port control mechanism including a first ...
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