In-dock super-large ship floating secondary positioning process

Abstract

The invention relates to an in-dock super-large ship floating secondary positioning process, which comprises the following steps of: ensuring that a ship meets an requirement on integrity before water enters a dock; making a ballasting and pier adding scheme and a dock pier fixing scheme before water enters the dry dock; arranging folding piers at right positions at the bottoms of ballast tanks of the whole ship and a half ship according to a requirement of a folding pier arrangement diagram; before water in the dock is drained, making preparation; marking water gauges on the front, tail, and left and right gunwales of the half ship respectively by using a paint, and using the water gauges as basis for observing longitudinal and transverse inclination of a ship body; observing and measuring in the process of introducing water into the dock; when the water begins entering the dock, gradually loosening a cable manually, and measuring and secondarily positioning the half ship; checking and arranging the dock piers; and washing the bottom of the dock and cleaning a cargo room. In the process, when the whole ship is launched, the half ship immediately moves to the position of the whole ship to be continuously hoisted and folded, the folding period of a ship under construction in the dock is shortened, and precious resources of gantry cranes are utilized to the greatest extent.

Description

Technical field: [0001] The invention relates to a ship manufacturing process, in particular to a floating secondary positioning process in a super-large ship dock. Background technique: [0002] With the rapid development of my country's shipbuilding industry, the ships built by the one-way construction method in the dock can no longer meet the requirements of the situation. On the one hand, this shipbuilding method is costly and the shipbuilding cycle is longer; The backlog of funds affects the normal operation of the enterprise. The ships built by the enterprises are all built by the one-and-a-half construction method in the dock, that is, the new construction technology of the whole ship and the half ship in the dock. That is to say, when the whole ship is launched, the half ship will be moved to the position of the whole ship for continuous hoisting and closing, shortening the closing cycle of the ship under construction in the dock, and maximizing the use of the precio...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of my country's shipbuilding industry, the ships built by the one-way construction method in the dock can no longer meet the requirements of the situation. On the one hand, this shipbuilding method is costly and the shipbuilding cycle is longer; The backlog of funds affects the normal operation of the enterprise