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Perpendicularity control process for single-tubular-pile foundation of offshore intertidal wind farm

A single-pipe pile and verticality technology, applied in the field of foundation engineering, can solve problems such as inability to achieve verticality, and achieve the effect of reducing project cost

Active Publication Date: 2012-07-18
JIANGSU LONGYUAN ZHENHUA MARINE ENG
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above deficiencies and provide a method for controlling the verticality of the single-pipe pile steel structure in the intertidal zone wind farm foundation without a transition section. The problem of ≤2.75‰ has turned the domestic construction of single-pipe pile steel structures without transition sections into a feasible solution, greatly improving the efficiency of offshore construction

Method used

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specific Embodiment approach

[0023] A. Manufacture control of single-pipe pile steel structure:

[0024] (1) The single-section cylinder is rolled by the whole plate, and the ellipticity is strictly controlled, and the requirement is ≤5mm;

[0025] (2) The tree-shaped assembly route is adopted: first, two sections of cylinders are assembled into one section, and then the two sections are joined together, and so on, and finally assembled, the straightness of assembly is strictly controlled, and the final straightness of single pipe pile is controlled at 30mm within;

[0026] (3) Drawing of verticality control line: breaking the traditional drawing process of drawing long and short lines, adopting the method of drawing long and short, that is: taking the flange surface of the upper end of the single pile as the benchmark, draw the center of gravity lines on the four sides of the single pile respectively, and draw the line Sweeping is carried out in the vertical plane rather than in the horizontal plane, so...

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Abstract

The invention discloses perpendicularity control process for a single-tubular-pile foundation of an offshore intertidal wind farm. The perpendicularity control process includes steps of controlling manufacture of a single-tubular-pile steel structure; controlling pile sinking; and adjusting the perpendicularity of a foundation pile according to actually measured inclination data of a flange on the top of the pile. The perpendicularity control process for the single-tubular-pile steel structure, without a transitional section, of the foundation of the offshore intertidal wind farm, the problem that the perpendicularity is higher than 2.75% during construction of a foundation of a wind farm in an intertidal zone by the aid of conventional process, construction of the single-tubular-pile steel structure without the transitional section becomes a feasible scheme in China, and offshore construction efficiency is greatly improved.

Description

technical field [0001] The invention relates to the foundation engineering of the wind power industry in the offshore intertidal zone, in particular to a technology for controlling the verticality of the single pipe pile foundation of the offshore intertidal zone wind power generation. Background technique [0002] According to the experience of foundation design of foreign offshore wind farms, the foundation structure of offshore wind farms is easy to adopt single-pipe pile structure steel structure, but foreign countries usually adopt single-pipe pile structure with transition section, and the verticality requirement of single-pipe pile sinking is usually: ≤10 ‰. In order to improve construction efficiency, on this basis, our country adopts the design of single-pipe pile steel structure without transition section, but since the structure has no transition section for leveling, the verticality of single-pipe pile after sinking is required to be: ≤2.75‰ to have a fan Equipm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D7/00E02D5/66E02D13/06
Inventor 李泽张海生张乐平王徽华曹春潼谢闽嵇红霖高建忠
Owner JIANGSU LONGYUAN ZHENHUA MARINE ENG
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