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Underwater installation process of removable deck of million-ton roll-on-roll-off ship

A movable deck and installation technology, which is applied to ship parts, ship construction, transportation and packaging, etc., can solve the problems of movable deck access and difficult installation, and achieve the effect of ensuring work stability

Active Publication Date: 2013-04-24
CSC JINLING SHIPYARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the ship is not as stable as on the berth during underwater installation, it will sway with the current, and the hull structure has been completed, so it is difficult to enter and install the movable deck

Method used

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Examples

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Embodiment Construction

[0044] For a 10,000-ton ro-ro ship, the cargo hold, that is, the height between the main deck and the upper deck, is 8250mm. It is planned to arrange two movable decks between the main deck and the upper deck, with a total of 42 blocks, 21 blocks in each layer, and Two movable ramps are set at the head as ramps for entering the upper and lower movable decks respectively.

[0045] (1) Pre-install the guide rails of the movable deck, the support reinforcement and the steel wire rope lifting point reinforcement respectively in the hull, and ensure that the distance tolerance between the two guide rails of each movable deck is only ±5mm, and the verticality of each guide rail is ≤3mm, and the gap between each two decks is 30mm. At the same time, further check the distance from the centerline of the ship to the inner longitudinal wall of the side; the flatness of the upper deck; the height of the middle cargo hold.

[0046] According to the values ​​in the inspection table, re-meas...

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Abstract

The invention relates to an underwater installation process of a removable deck of a million-ton roll-on-roll-off ship. The underwater installation process is particularly suitable for the removable deck of the million-ton ship, and therefore the removable deck can be guaranteed to be installed inside the million-ton ship successfully, and construction time of a ship occupying a shipway. According to the underwater installation process of the removable deck of the million-ton roll-on-roll-off ship, after the ship launches, the removable deck of double layers and a removable slope way of double layers are transported into a cabin through a floating crane and a flat car, and are hung between a main deck and an upper deck, integrally installation is carried out through a hand-drive block, and fixation is carried out through hoisting pads and steel wire ropes, the removable deck is dragged through the steel wire rope hung on the upper deck, the removable deck is guaranteed to move vertically by utilizing a guide rail inside a boardside cabin, can be packed up when not used, and can be released when used, and the working stability of the removable deck is guaranteed through a foldable drawing rod.

Description

[0001] technical field [0002] The invention relates to a movable deck installation technology specially used for ro-ro ships, in particular to an underwater installation technology for a 10,000-ton ro-ro ship movable deck. [0003] Background technique [0004] Ro-ro ships are trucks and trailers that carry various cars, containers or goods, and have relatively high cargo space. In order to maximize the benefits, the owner of this 10,000-ton ro-ro ship required to increase the height of the middle cargo hold, and arranged two movable decks between the main deck and the upper deck. When the goods are large trucks, the movable deck can be put under the upper deck so as not to hinder the entry and exit of the trucks; when the goods are small ro-ro goods or cars, the movable deck can be lowered to increase the cargo carrying area. [0005] The removable deck was originally not required to be installed in our factory. After the ship was launched, the shipowner asked our facto...

Claims

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Application Information

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IPC IPC(8): B63B9/06
Inventor 刘义李倩张芳杰
Owner CSC JINLING SHIPYARD
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