Offshore wind power generation tower foundation and structure and installation and construction method thereof

A construction method and wind power generation equipment technology, applied in the field of foundation engineering, can solve problems such as heavy tower structure weight, high material cost, and difficult construction, and achieve the effects of saving material costs, reducing shift costs, and reducing costs

Active Publication Date: 2012-02-01
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional crane ship only relies on the anchor cable system to position and fix the hull. Affected by sea waves, tides and other forces, when the tower superstructure is installed, the slight shaking of the hull will cause several meters of displacement at a height of more than 50 meters. , construction is very difficult, and safety cannot be guaranteed, so large-scale special operation ships and large-scale lifting machinery are required for water split assembly or overall installation
[0003] Existing offshore wind power tower structures are heavy and costly materials
Moreover, due to the heavy weight of the tower structure, its manufacture, transportation, installation, and installation of wind power generation equipment require large transport ships, large special operation ships, and large hoisting machinery. Promotion of clean and low-carbon energy

Method used

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  • Offshore wind power generation tower foundation and structure and installation and construction method thereof
  • Offshore wind power generation tower foundation and structure and installation and construction method thereof
  • Offshore wind power generation tower foundation and structure and installation and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] see see Figure 2a ~ Figure 2f , a structural installation and construction method of the water wind power generation tower foundation and structure of the present invention.

[0038] 1) Use a piling boat and a pile driver to drive a central pile 1 into a predetermined position in the water. The central pile 1 is a steel pipe pile with a diameter of 1470mm and a wall thickness of 20mm. The central pile 1 is a vertical pile with a total length of 60m, of which the length is 52m below the mud surface, 3m in the water, and 5m above the water;

[0039] 2) Drive four satellite piles 2 around the central pile 1 by using a piling ship and a pile driver. The satellite piles 2 are all oblique piles with a total length of 60m. The inclination ratio of the horizontal direction and the vertical direction is 1:20. Satellite piles 2 are all steel pipe piles with a diameter of 1470mm and a wall thickness of 20mm;

[0040] 3) A small construction ship is moored to set a central stru...

Embodiment 2

[0049] see Figure 3a ~ Figure 3f , the installation and construction method of another structural form of the foundation and structure of the floating wind power generation tower of the present invention.

[0050] 1) Use a piling boat and a pile driver to drive a central pile 1 into a predetermined position in the water. The central pile 1 is a steel pipe pile with a diameter of 1470mm and a wall thickness of 20mm. The central pile 1 is a vertical pile with a total length of 60m, of which the length is 52m below the mud surface, 3m in the water, and 5m above the water.

[0051] 2) Drive four satellite piles 2 around the central pile 1 by using a piling ship and a pile driver. The satellite piles 2 are all oblique piles with a total length of 60m. The inclination ratio of the horizontal direction and the vertical direction is 1:20. The satellite piles 2 are all steel pipe piles with a diameter of 1470mm and a wall thickness of 20mm.

[0052] 3) A small construction ship is...

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Abstract

The invention provides an offshore wind power generation tower foundation and structure and an installation and construction method thereof. The offshore wind power generation tower foundation comprises a central pile and a plurality of satellite piles surrounding the central pile; a central structure node is arranged on the top of the central pile, while satellite structure nodes are arranged onthe tops of the satellite piles; components are connected between the central structure node and the satellite structure nodes and between the satellite structure nodes so as to form an offshore structure layer; a central column is arranged right above the top of the central pile, the central pile and the central column are connected by virtue of a structure node; a first structure node is arranged below the top of the central column, the first structure node and the satellite structure nodes are connected through an inclined column or an inclined cable so as to form a space symmetric structure of the wind power generation tower; and a second structure node is arranged on the top end of the central column, and is provided with wind power generation equipment. According to the invention, the functions of the tower are maintained, the cost of the tower is reduced, and the offshore wind power generation tower is installed and constructed in a shoal water or still water area which easily causes the stranding of a construction ship, by combining the existing conventional offshore construction equipment.

Description

technical field [0001] The invention relates to the technical field of foundation engineering, in particular to a foundation and structure of a wind power generation tower on water and an installation and construction method thereof. Background technique [0002] The foundations of floating wind power towers mainly include single pile foundation, gravity foundation and jacket group pile foundation; the superstructure mainly adopts the form of single-section tower, upper and lower double-section or multi-section tower. The water assembly of the wind turbine requires accurate alignment between the bottom of the tower and the foundation of the wind turbine, accurate alignment between the towers, accurate alignment between the top of the tower and the nacelle, and accurate alignment between the third blade and the hub of the nacelle. Accurate alignment. The traditional crane ship only relies on the anchor cable system to position and fix the hull. Affected by sea waves, tides a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E02D27/12E02D7/00
Inventor 王怀忠
Owner BAOSHAN IRON & STEEL CO LTD
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