Floating dock is a kind of engineering ship used for repair and shipbuilding, which can not only be used for repairing and building ships, but also can be used for salvage sunken ships, transporting deep-water ships through shallow waterways and other purposes.The floating dock has a special construction, with a large concave compartment with walls on both sides, open front and rear, and a flat bottom for easy access for boats. The walls at the bottom and on both sides are box-shaped, divided into several sealed compartments that regulate the floating dock by filling and draining water.
Specifically, the application scenarios of floating docks include:
Ship repair: After the ship enters the floating dock, the floating dock is sunk to an appropriate depth by filling water, and then the ship is repaired.
Shipbuilding: The construction of new ships in floating docks provides a stable platform.
Salvage of shipwrecks: Using the lifting and buoyancy capabilities of the floating dock, ships that have sunk to the bottom can be salvaged.
Passage of waterway: Help deep-water ships pass through shallow waterway safely and avoid the problem of impassability due to insufficient water depth.
In terms of the history and development of floating docks, in December 2012, Guangxin Offshore delivered the world's first self-propelled floating dock to the Chinese Navy, demonstrating the importance and advancement of floating dock technology in modern ship maintenance and construction.