Offshore wind turbine large-diameter single-pile foundation with ice-resistant structures

A technology for offshore wind turbines and single-pile foundations, which can be used in infrastructure engineering, protection devices, buildings, etc., and can solve problems such as large engineering volumes, and achieve the effect of reducing the effect and facilitating disassembly and replacement

Active Publication Date: 2014-08-06
POWERCHINA HUADONG ENG COPORATION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-ice cone ice-breaking cone structure of the oil production platform jacket in the offshore oil industry is usually designed as a cone-shaped structure. Large amount of work

Method used

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  • Offshore wind turbine large-diameter single-pile foundation with ice-resistant structures
  • Offshore wind turbine large-diameter single-pile foundation with ice-resistant structures
  • Offshore wind turbine large-diameter single-pile foundation with ice-resistant structures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as Figure 1~Figure 4 As shown, this embodiment includes a steel pipe type large-diameter single pile 1 and an anti-icing structure arranged outside it. The anti-icing structure needs to cover the elevation range (H) of sea ice action. The anti-icing structure is arranged in two circles, upper and lower. A pair is installed in mirror image at each position relative to the horizontal plane. In this example, the anti-ice structure includes short horizontal support tube 2, long horizontal support tube 3, outer inclined tube 4 and flange plate 5, the short horizontal support tube 2 and the long horizontal support tube 3 are arranged in parallel up and down, and the inner ends of the two horizontal support tubes Both are formed with flanges 5, and the outer ends of the two horizontal support pipes are welded together to fix the outer inclined pipe 4, and the long horizontal support pipe 3 and the outer inclined pipe 4 are welded with an inclined support pipe 6....

Embodiment 2

[0026] Embodiment 2: as Figure 5~Figure 8 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, except that the anti-ice structure in this example consists of a short horizontal support tube 2, a long horizontal support tube 3, a horizontal connecting rod 7, a support tube 8, and an outer inclined tube. 4 and a flange 5, in which two outer inclined tubes 4 and a horizontal connecting rod 7 are welded into a triangular inclined tube assembly; the short horizontal support tube 2 and the long horizontal support tube 3 are arranged in parallel up and down, and the short horizontal support tube 2 and the Diagonal bracing pipes 6 are welded between the long horizontal bracing pipes 3 . Both the short horizontal support tube 2 and the inner end of the long horizontal support tube 3 are provided with a flange 5, and the outer end of the long horizontal support tube 3 is connected to the vicinity of the corner ends of the two outer inclined tubes 4 ...

Embodiment 3

[0027] Embodiment 3: as Figure 9 As shown, the structure of this embodiment is basically the same as that of Embodiment 2, the only difference is that in this embodiment, a steel plate 9 is provided in the area between the two outer inclined pipes 4 of the triangular inclined pipe assembly, which helps the sea ice along the outer side of the anti-icing structure. Climb breaks in sloped areas. In this example, the horizontal connecting rods 7 play the role of the inner ribs, assisting the supporting steel plate 8, and the number of the horizontal connecting rods 7 is set as required.

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Abstract

The invention relates to an offshore wind turbine large-diameter single-pile foundation with ice-resistant structures. The offshore wind turbine large-diameter single-pile foundation with the ice-resistant structures is simple in structure and relatively low in cost, and the ice-resistance capability of the offshore wind turbine large-diameter single-pile foundation can be improved. According to the technical scheme, the offshore wind turbine large-diameter single-pile foundation with the ice-resistant structures is provided with a steel tube type large-diameter single pile and is characterized in that a plurality of ice-resistant structures are arranged on the periphery of the single pile in a sea ice action region; the ice-resistant structures are divided into an upper circle and a lower circle; the ice-resistant structures are arranged on the outer side of the single pile through flange plates; the outer side of each ice-resistant structure is provided with an obliquely-arranged outer inclined pipe; the outer inclined pipes of the upper circle of ice-resistant structures and the outer inclined pipes of the lower circle of ice-resistant structures form an ice-resistant conical structure which makes contact with sea ice. The offshore wind turbine large-diameter single-pile foundation with the ice-resistant structures is applicable to the offshore wind power generation industry.

Description

technical field [0001] The invention relates to a large-diameter single-pile foundation for an offshore fan with an anti-ice structure. Suitable for offshore wind power industry. Background technique [0002] The single-column single-pile foundation (hereinafter referred to as the single-pile foundation) is usually composed of a single steel pipe with a diameter of more than 4m. The lower part of the single-pile foundation penetrates into the soil to provide bearing capacity; It is connected to the fan tower through the grouting connection section or directly with the flange. As the simplest type of foundation for offshore wind turbines, the monopile foundation is currently the dominant type of foundation structure for offshore wind farms in Europe. With the improvement of domestic pile making technology, piling equipment, and pile sinking capacity, the application of single pile foundation in the construction of offshore wind farms in my country will also become more and ...

Claims

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Application Information

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IPC IPC(8): E02D31/00E02D27/52
Inventor 李炜赵生校周永徐江陈法波熊根张纯永
Owner POWERCHINA HUADONG ENG COPORATION LTD
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