Ship flat ground construction method

Abstract

A ship flat ground construction method comprises the steps that a slipway is built on the flat ground, a plurality of transverse grooves are formed in the plane of the slipway, and air bags are installed in the transverse grooves; welding of the bottom plate of the whole ship is completed in a fragmentation assembly welding mode; the center line of the bottom plate of the whole ship is calibrated by adopting a direct line pulling and marking method, and then the position line of each component is calibrated; welding of the inner bottom plate is completed by adopting a fragmentation assembly welding method, the inner bottom plate is connected with the double-layer bottom framework, and installation of the double-layer bottom is completed; when the inner bottom plate is assembled and welded, the shipway on the two sides of the inner bottom plate is assembled with the shipway on the left side and the shipway on the right side of the inner bottom plate; assembling, welding and painting the front bulkhead, the middle bulkhead and the rear bulkhead of the cargo hold while assembling the left and right side ultra-long blocks; the bow and the stern of the whole ship are manufactured in a segmented mode at the same time, then the whole ship is integrally folded to be formed, outfitting assembling is conducted, and finally the head segment and the tail segment are sequentially assembled; and main and auxiliary machines and the superstructure are hoisted on the ship. The shipbuilding construction period can be shortened, the shipbuilding cost is reduced, and the shipbuilding quality is improved.

Description

technical field [0001] The invention belongs to the field of shipbuilding methods, and particularly relates to a method for building ships on the ground. Background technique [0002] In recent years, there are several main construction methods in ship construction: overall construction, subsection construction, and total section construction. The overall construction method is a backward construction method, but there is still a large market for small and medium-sized shipyards. The segmented construction method is relatively common, but too small segments require high construction accuracy, the slipway cycle is relatively long, more lifting equipment and supporting equipment are required, and there are many circular seams after assembling to form a large total section. Circumferential seams still require a large number of welders to perform manual welding, and the welding quality needs to be improved. The total section construction method, due to the large weight of the ...

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Problems solved by technology

[0003] Since the flat ground construction method was pioneered in South Korea in 2006, a number of domestic and foreign shipbuilding companies have adopted this method. The existing flat ground construction methods are equip

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