Tandem shipbuilding method for chemical tanker

Abstract

The invention provides a tandem shipbuilding method for a chemical tanker, which belongs to the technical field of ships and solves the problems of low space utilization rate, long shipbuilding period and the like in the traditional chemical tanker building process. The method of the invention comprises the following steps: A, when building No. 1 ship nearby a launching way at the lower end of a shipway, building No. 2 ship or a part of the structure of the No. 2 ship at the upper end of the shipway at the same time; B, after building the No. 1 ship, sliding the ship body to the launching way; C, moving the No. 2 ship to the place, where the No. 1 ship is primarily, at the lower end of the shipway; D, after moving the No. 2 ship to the appointed place, performing secondary positioning on the height and direction of the ship body with a positioning mechanism; and E, after positioning the No. 2 ship, continuously building the No. 2 ship, simultaneously building another ship or a part of the structure of the ship at the place where the No. 2 ship is primarily, and so on. The tandem shipbuilding method for the chemical tanker can simultaneously build more than one ship so that the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of ships, and relates to a tandem shipbuilding method for ships, in particular to a tandem shipbuilding method for chemical tankers. Background technique [0002] With the development of the shipbuilding industry, the segmented construction technology is becoming more and more mature. The number of segments that divide the entire ship is getting smaller and smaller, and the weight of the segments is also increasing. Most shipyards use large slipways to build ships. During the overall planning of the shipyard in the early stage of construction, the size of the slipway will be determined according to the actual construction capacity and the size of the largest ship that can be built. However, the main size of the ship usually built by the shipyard may be much smaller than the size of the slipway, and there may be many places in the slipway that are free. This creates a huge waste. [0003] The large-scale che...

AI Technical Summary

Problems solved by technology

If the positioning is inaccurate and the center line deviates, the center line of the hull based on this center line may deviate far from the center line of the berth, which will cause a lot of inconvenience to the hoisting and closing of the subsequent sections and the measurement of the main dimensions of the hull. The secondary positioning of some sections must be able to accurately determine the correct position of the centerline and rib position in the berth, which puts forward higher requirements for the precise positioning of the stern section with large mass and volume. It is difficult for general small and medium-sized shipyards with a complete set of professional equipment to meet the requirements

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