Opening method of through hole in ship wall plate and ship block construction process

Abstract

The invention discloses a method for opening a through hole of a ship wall plate and a ship segmented construction process, and belongs to the technical field of ship building. The method for opening the through hole of the ship's wall plate. The connecting hole is set at intervals between the upper edge of the hole and the edge of the wall plate, the lower edge of the water flow hole is set through the lower edge of the wall plate, and the lower end of the water flow hole is connected with the lower end of the wall plate through the curved soft toe structure concave to both sides of the wall plate catch. The main function of the flow hole is to flow water and over-weld. The through hole can solve the fatigue problem of the longitudinal bone at the through hole. And the problem of running water over welding.

Description

technical field [0001] The invention relates to the technical field of ship building, in particular to a through hole of a ship wall plate, a method for opening the same, and a ship segmented construction process. Background technique [0002] In the design of ships, when the structural members in liquid tanks such as ballast tanks, fresh water tanks, fuel oil tanks and cargo oil tanks pass through non-watertight floors or other strong frames, the existing through holes have full patch or half-pack patch Two forms. The fully patched through hole cannot meet the flow water requirements, and a water flow hole needs to be opened between each longitudinal frame on the floor plate, and the water flow hole needs to be opened to the bottom to ensure that there is no water accumulation. There is a gap of 30 to 50 mm between the patch plate and the strip plate to ensure the water flow, but this form can only be used in areas where the connection area and fatigue requirements are not...

AI Technical Summary

Problems solved by technology

There is a gap of 30 to 50 mm between the patch plate and the strip plate to ensure the water flow, but this form can only be used in areas where the connection area and fatigue requirements are not high

[0003] Among them, although the fully patched through hole solves the problem of connection area and fatigue, it needs to open a large number of additional water holes to meet the water flow requirements. This design has the following defects: first, the workload of blanking and cutting is large; The water hole opened to the bottom makes it impossible to weld continuously at this position, which reduces the welding efficiency; first, in the inclined position, the water hole opened between the aggregates is not at the lowest point of water accumulation, and the lowest point is at the through hole, which will cause a certain amount of flooding

The half-enclosed through hole can solve the problem of water flow, but it also has the following problems: first, the application range is small, and this form cannot be used in places with high connection area requirements; first, there are many fatigue hot spots, and the fatigue problem is more prominent. Form; First, the distance between the lower end of the patch plate and the strip plate is very close, and there are construction difficulties such as welding, grinding, and corner wrapping, and the construction quality is difficult to guarantee

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