| 摘要 |
A vessel with a movable deck. The vessel will contain in one embodiment a catamaran hull having a first pontoon and a second pontoon. The catamaran hull has a platform attached thereto. The vessel also includes a first leg, second leg, and third leg extending vertically from the top side of the platform. The movable deck will contain a first opening, a second opening, and a third opening which has the first, second, and third leg respectively disposed therethrough. The vessel further contains a jacking mechanism that raises and lowers the movable deck relative to the platform. The vessel may further comprise a first thruster nozzle attached to the first pontoon, the first thruster nozzle being movable in a 360 degree phase and a second thruster nozzle attached to the second pontoon, with the second thruster nozzle being movable in a 360 degree phase. In the preferred embodiment, the vessel will also include a dynamic positioning system that computes and adjusts the location of the vessel in the water body to a predetermined coordinate location. The dynamic positioning system is operatively associated with the first and second thruster nozzle. A method for raising a work deck is also included.
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