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Pile leg folding method for self-elevating platform

A self-elevating platform and pile leg technology, which is applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of high requirements for pile leg cranes, improve the safety of construction operations, and reduce the requirements for cranes. The effect of improving work safety

Inactive Publication Date: 2018-02-02
CIMC OFFSHORE ENG INST +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide a method for closing the legs of a self-elevating platform, which solves the problems in the prior art that the closing of the legs is affected by sea conditions and requires high cranes

Method used

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  • Pile leg folding method for self-elevating platform
  • Pile leg folding method for self-elevating platform
  • Pile leg folding method for self-elevating platform

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Embodiment Construction

[0038] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

[0039] The invention provides a method for closing pile legs of a self-elevating platform. Among them, the self-elevating platform mainly includes a main hull and a plurality of legs that can be lifted and lowered on the main hull. The above is the method of closing the pile legs in sections into pile legs.

[0040] refer to figure 1 , the leg closing method mainly includes:

[0041] S10. Step of closing the top leg sections; in this step, closing the top leg sections on the main hull. The top leg segment can be composed of one or more leg segments, a...

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Abstract

The invention provides a pile leg folding method for a self-elevating platform. The pile leg folding method comprises a top pile leg section folding step, a main ship body elevating step and a pile leg sectional folding step; in the top pile leg section folding step, top pile leg sections are folded on a main ship body; in the main ship body elevating step, the main ship body is elevated to a preset height, and a support structure is arranged on a berth to support the main ship body; and in the pile leg sectional folding step, the top pile leg sections are elevated by utilizing an elevating device on the main ship body, to-be-folded pile legs are sequentially moved below the top pile leg sections in a sectional manner and are folded. The pile leg folding method is hardly affected by environment and weather conditions, and has little requirement on a hoister; safety of construction work is improved; meanwhile, a construction period can be shortened; and platform construction cost is lowered.

Description

technical field [0001] The invention relates to the field of marine engineering equipment construction, in particular to a method for closing pile legs of a self-elevating platform. Background technique [0002] Because jack-up platforms are not affected by ocean currents, there is no hydrodynamic response of floating structures such as roll, pitch, and heave when operating at sea, which is very close to land operations. There is a problem of mooring, and it is widely used in large and shallow sea continental shelves. In consideration of the comprehensive performance of weight and strength, jack-up platforms over 250 feet adopt truss-type pile legs. Among them, the leg length of the 300-foot jack-up platform is about 122 meters; the leg length of the 400-foot jack-up drilling platform is about 167 meters; the leg length of the 500-foot jack-up platform is about 205 meters. At present, the lifting height of land gantry cranes or shore cranes in shipyards is generally about ...

Claims

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Application Information

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IPC IPC(8): E02B17/00E02B17/08
CPCE02B17/00E02B17/0004E02B17/08E02B2017/0043E02B2017/0047
Inventor 夏广印尹秀凤刘静滕瑶刘礼霞
Owner CIMC OFFSHORE ENG INST
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