Method for salvaging sunken ship by adopting rubber air bag

Abstract

The invention discloses a method for salvaging a sunken ship by adopting a rubber air bag. The method comprises the process steps that for the sunken ship, salvaging preparation is implemented, a construction site is arranged, barriers in the salvage procedure is cleared, then a jacking hole 3 is drilled in the bottom of the sunken ship, a jacking steel cable penetrates through the jacking hole 3, a rubber air bag 7 covered with a fixed net cover sinks to a mounting position in an air-free state, the fixed net cover, the jacking steel cable 11 and a movable chain ring 7 are connected and installed by a diver or an underwater robot, then an inflatable appliance on the water surface is used for inflating an air bag group, the volume of the air bag is increased so as to generate buoyancy, and the air bag pulls the steel cable 11 at the bottom of the sunken ship, so that the sunken ship 1 is lifted by buoyancy so as to be wholly risen or risen by sections.

Description

technical field [0001] The invention relates to a method for salvaging a sunken ship by using a rubber air bag, in particular to a salvage engineering field in which a high-pressure rubber air bag is used to generate buoyancy to assist lifting operations. Background technique [0002] Ships sailing at sea cause seawater to enter the cabin due to various reasons, which makes the ship sink due to insufficient buoyancy. To salvage a sunken ship, the sunken ship must be allowed to recover its buoyancy, so that the sunken ship can surface and see the light again. Measure to restore its buoyancy! Thereby buoyancy salvage method appeared. [0003] The buoy salvage method is a method of salvaging a sunken ship. After inflating a number of buoys underwater, the sunken ship is floated out of the water by buoyancy. In buoy salvage, a set of buoys is towed to the wreck's operating area, filled with water and sunk to the bottom. The divers go into the water, tie the buoys to the sunk...

AI Technical Summary

Problems solved by technology

[0004] At present, the buoys commonly used are steel buoys. To obtain sufficient buoyancy, it is necessary to manufacture huge steel buoys. At the same time, due to the complex structure of steel buoys, multiple cabins with different functions are arranged in the buoys, and the operation and control are complicated. This makes the manufacturing cost very expensive

In addition, during use, because the outer shell of the buoy is made of steel, its shape is not changeable, and it takes up a lot of space. In the process of salvaging buoys, each buoy needs to be filled with water first. After the underwater fixing is completed, the water in each buoy needs to be discharged. The process of filling and draining water is longer, which prolongs the entire construction period.

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