Submarine cable laying method: During the laying process, the construction vessel loads the submarine cable by overall hoisting and other methods. When the construction ship is at a certain distance from the shore, the cable is dropped to the seashore. At the same time, buoyancy devices should be placed at intervals on the cable to make it float on the sea surface. Afterwards, the cable is pulled to the shore with the traction device on the shore and fixed.
Once the cable lands, the device is removed, allowing the cable to sink under its own gravity. After that, through the adjustment of the ship, the cable is laid while walking on the designed laying route. After the work of the ship is completed, the submarine cable is laid in this way.
Submarine cable laying mainly includes three stages: cable routing investigation and cleaning, submarine cable laying and scouring and burial protection. When laying the cable, control the sailing speed of the laying ship and the release speed of the cable to control the angle of the cable entering the water and the laying tension, so as to avoid damage to the cable due to too small bending radius or too large tension. When laying in the shoal section (Nanling side), the cable laying ship stopped at a distance of 4.5 kilometers from the coast.
The cables placed on the buoys are pulled ashore by tractors on the shore, and the buoys are removed after the cables are landed, so that the cables sink to the bottom of the sea. When laying in the deep sea, the cable laying ship releases the cable, and uses underwater monitors and underwater remote control vehicles to continuously monitor and adjust to control the forward speed and direction of the laying ship and the speed of laying cables to avoid uneven places and rocks to avoid damage to the cable.
