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140-meter high-truss self-elevating marine platform spud leg disassembling method

A self-elevating, high-truss technology, applied in the field of marine engineering, can solve the problem that the dismantling method of the pile legs is not suitable for the 140-meter-high truss self-elevating offshore platform, etc., and achieves high dismantling efficiency, convenient disassembly and assembly, and safety. high sex effect

Active Publication Date: 2017-12-12
舟山长宏国际船舶修造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem to be solved by the present invention is that the pile leg dismantling method is not suitable for the 140-meter-high truss self-elevating offshore platform

Method used

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  • 140-meter high-truss self-elevating marine platform spud leg disassembling method

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] A method for dismantling pile legs of a 140-meter-high truss self-elevating offshore platform of the present invention comprises the following steps:

[0037] a. Remove the top first, use crawler cranes to set up two working platforms a2 and b3 on the top of the leg body 1, and connect the temporary pedals between the two working platforms a2 and between the working platform a2 and working platform b3 4;

[0038] b. Set a cutting line on each work platform a2 and work platform b3, completely cut off the strut side tube 5 above the main body of the pile leg along the cut line, and set lifting points at the three ends of the strut side tube 5 Position 9, the lifting point position 9 is close to the main pipe 6 of the pile leg body 1, and 20 tons of slings are tied in the area of ​​each lifting point position 9, the length of a single sling is grea...

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Abstract

The invention provides a 140-meter high-truss self-elevating marine platform spud leg disassembling method which comprises the following step: a, carrying out the disassembling operation at the top firstly, building two operation platforms a and an operation platform b at the top end of a spud leg body by utilizing a crawler crane, and properly connecting the two operation platforms a as well as connecting the two operation platforms with the operation platform b through temporary pedals. The 140-meter high-truss self-elevating marine platform spud leg disassembling method provided by the invention has the advantages that an elevating cage is adopted for the rising and falling of construction personnel as well as directly placed on the operation platforms, and the disassembling efficiency is high.

Description

technical field [0001] The invention relates to a method for dismantling pile legs of a self-elevating offshore platform with a 140-meter-high truss, and belongs to the technical field of ocean engineering. Background technique [0002] The ocean is a resource for the new generation of countries to compete. The offshore platform is installed on the legs. The legs above the ocean platform need to be replaced frequently due to various constructions on the ocean platform. The legs above the ocean platform must be disassembled. After all, the current leg disassembly method is not suitable for the 140-meter-high truss jack-up offshore platform. In order to solve the above difficulties, it is necessary to develop a disassembly method suitable for the 140-meter-high truss jack-up offshore platform. Contents of the invention [0003] The object of the present invention is to provide a method for dismantling the legs of a 140-meter-high truss self-elevating offshore platform. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B17/00
Inventor 陈平汪家政陶汉东李川江
Owner 舟山长宏国际船舶修造有限公司