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Foundation for enabling anchoring of wind turbine tower thereto by means of replaceable through-bolts

A technology that penetrates through bolts, wind turbines, and is applied in the field of providing such foundations to achieve the effect of lowering the structure

Inactive Publication Date: 2014-04-09
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the inspection of through bolts can be carried out, there is still room for improvement in the structural strength of the foundation disclosed in US2007 / 0251187

Method used

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  • Foundation for enabling anchoring of wind turbine tower thereto by means of replaceable through-bolts
  • Foundation for enabling anchoring of wind turbine tower thereto by means of replaceable through-bolts
  • Foundation for enabling anchoring of wind turbine tower thereto by means of replaceable through-bolts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1 A wind turbine foundation according to a first embodiment of the invention is schematically shown.

[0035] refer to figure 1 , having a wind turbine 100 comprising a rotor 102 provided with a set of blades 104 . The rotor 102 is disposed on top of a tower 106 , which is anchored to a foundationsole 116 , shown here embedded in the ground 112 .

[0036] Tower 106 is typically made of steel, whereas base platform 116 is made of reinforced concrete. In order to anchor the steel tower 106 to the foundation platform 116 a flange 114 with a through hole 115 is provided at the bottom of the steel tower. In addition, the base platform 116 is provided with a corresponding set of through holes 118 . Thus, by placing the tower on the upper surface of the base table 116, aligning the through-holes 115 in the flange with the through-holes 118 in the base table 116, inserting through-bolts 120 into the aligned holes , and fix the nuts 121a, b at the upper and lower end...

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Abstract

A foundation for enabling anchoring of a wind turbine tower (106) thereto by means of replaceable through-bolts (120), the foundation comprising: a foundation sole (116) with a set of through-holes (118) for accommodating the through-bolts (120), wherein the through-holes (118) extend from an upper surface to a lower surface of the foundation sole (116); a workspace (126) arranged beneath the foundation sole (116) for enabling access to lower ends the through-bolts (120) when arranged in the through-holes (118); and a passage (128) allowing access to the workspace (126) from a location outside an area of the foundation sole (116) to be covered by the tower (106).

Description

technical field [0001] The present invention generally relates to a wind turbine foundation. [0002] In particular, the invention relates to a foundation for enabling a wind turbine tower to be fixed thereto by replaceable through-bolts, and to a method of providing such a foundation. Background technique [0003] Wind turbines generally comprise a rotor provided with a set of blades, wherein the rotor is arranged on top of a wind turbine tower anchored to a foundation embedded in the ground. Usually, the tower is made of steel, whereas the base is made of reinforced concrete. In order to anchor the steel tower to the concrete foundation, flanges with through holes are provided at the bottom of the steel tower. Anchor bolts, embedded in the concrete base and protruding from its surface, can then be passed through holes in the flange so that the flange can be secured with nuts. [0004] An alternative to using bolts embedded in concrete is to use replaceable through-bolts...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D11/00F03D3/00
CPCY02E10/728E02D27/42F03D11/045F03D13/22E02D27/425Y02E10/72
Inventor J·克里斯滕森
Owner VESTAS WIND SYST AS
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