Folding process for ship bow and stern block construction

Abstract

The invention is applicable to the technical field of ship construction and particularly relates to a folding process for ship body bow and stern block construction, which divides a ship body into a bow block and a stern block and folds the bow block and the stern block on a shipway. The folding process comprises steps of marking out a positioning line at the closing opening as required, and mounting a guide positioning tool; measuring the ports of the bow block and the stern block by using an instrument to ensure that the sizes of closure openings are consistent; completing launching work on the bow block and the stern block respectively; the bow block and the stern block being dragged into a floating dock, and the horizontal height of the bow block and the horizontal height of the stern block being adjusted to be consistent; slowly drawing close and drawing close; after the folding precision meets the requirement, a positioning tool and a guiding tool arranged on the guiding and positioning tool being welded so that the bow block and the stern block are relatively fixed; completing integral pier setting of the bow block and the stern block, and polishing, welding and measuring a closure opening. The process is advantaged in that not only can large ship construction be achieved, but also the construction cost can be remarkably reduced, the construction period is shortened, the working face is widened, and the construction process is safer and more controllable.

Description

technical field [0001] The invention relates to the technical field of ship building, in particular to a closing process for the construction of the bow and stern sections of a hull. Background technique [0002] The design of marine ships tends to be large and complex, and some shipyards with insufficient infrastructure cannot meet the overall construction needs of some large-scale ships. [0003] In response to this situation, shipyards often build new floating docks or larger semi-submersible barges to improve their own capabilities to deal with them, or rent resources from other shipyards to integrate them after the factory completes the construction in sections. [0004] The obvious shortcomings of the above approach are as follows: 1. The construction cost budget will increase significantly, and it will not be competitive compared with peers; 2. Due to factors such as reconstruction and expansion of infrastructure, and extension of logistics and transportation lines, t...

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Problems solved by technology

[0004] The obvious shortcomings of the above approach are as follows: 1. The construction cost budget will increase significantly, and it will not be competitive compared with peers; 2. Due to factors such as reconstruction and expansion of infrastructure, and extension of logistics and transportation lines, the ship construction cycle will also be extended; 3. The current There is a method that requires a lot of investment, takes a long time, is not popular, and cannot be applied to the construction needs of various ship types in shipyards.

[0005] The main reason for the above problems is that when the factory was built, the infrastructure capacity planning was insufficient, and it was very difficult to expand the capacity in the later stage

It is feasible to complete the combined construction by renting other company's dock resources, but the construction cost and cycle will increase significantly, which may directly lead to the situation of project losses

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