METHOD OF EXPOSE TO SUBMARINE CABLES THAT WERE LAID UNDER OCEAN FLOOR OR WATER FLOOR

The present invention provides a method to expose a submarine cable laid under an ocean floor which sucks in an ocean floor material covering a submarine cable to discharge the ocean floor material towards an ocean surface to expose the submarine cable to provide a pleasant work environment. The method to expose a submarine cable laid under an ocean floor comprises: a ship moving step of moving a ship comprising an air lift unit to suck in an ocean floor material covering a submarine cable to discharge the ocean floor material towards an ocean surface to expose the submarine cable, a compressor to supply high-pressure air to the air lift unit, and a lifting means to move the air lift unit to a target location; an air lift unit lowering preparation step of connecting the compressor and the lifting means to the air lift unit in the ship which has undergone the ship moving step; an air lift lowering step of operating the lifting means which has undergone the air lift unit lowering preparation step to lower the air lift unit towards the submarine cable; and a submarine cable exposing step of operating the air lift unit which has undergone the air lift lowering step, the compressor, and the lifting means to expose the submarine cable.