FIELD: transportation.
SUBSTANCE: method for lifting of sunk object, in which at first unit of vertically oriented rocket movers with controlled traction force is fixed on beam with hauling device symmetrically to longitudinal axis of beam. Then beam is lowered to basin bottom, and hauling device and unit of rocket movers are placed on both sides of sunk object boards. Afterwards, rocket movers are connected with total traction force less than weight of lowered device in water, and bottom mud is flushed away on both sides of sunk object. Then hauling device is connected to sunk ship, rocket movers are started again with traction force calculated for break-off of sunk object from basin bottom. Afterwards rocket movers are changed over into mode of operation with total traction force calculated to overcome weight of sunk object in water, simultaneously with break-off of sunk object from bottom. After lifting of sunk object and fixation of lifted sunk object at basic vessel, operating rocket movers are disconnected.
EFFECT: reduced labour-intensiveness of salvage operation.
2 dwg
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