Footing for wind turbine towers

Inactive Publication Date: 2013-01-03
GAMESA INNOVATION & TECH SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a footing that is used for the foundation of a tower. This footing provides a stable surface for handling and assembling different parts of the tower, as well as for supporting heavy elements inside the wind turbine. The technical effect of this invention is to provide a safer and more stable foundation for wind turbines, which ensures their stability and durability over a long period of time.

Problems solved by technology

Notwithstanding this solution, it is not deemed to be an ideal solution.
This solution does not take into account that setting tower sections, which are in line to be hoisted, onto the ground around the footing causes this area to sink, which consequently calls for the cementation of a platform around the tower with the subsequent rise in the civil engineering price for wind turbine.

Method used

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  • Footing for wind turbine towers
  • Footing for wind turbine towers
  • Footing for wind turbine towers

Examples

Experimental program
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Effect test

Embodiment Construction

[0007]An object of the invention is to create a footing, preferably of concrete, so as to erect a tower comprising different sectors, the nacelle and its corresponding internal elements, the hub and the blades.

[0008]Another object of the invention is to furnish the footing with a broad radial surface with respect to the central point, on which the tower is erected.

[0009]And finally, another object of this invention is to furnish the tower pedestal with a footing having a horizontal extension close to ground level with a sufficient consistency so as to fulfill its purpose of supporting the different tower sections during assembly.

[0010]One of the primary advantages of the present footing is the minimizing of material used, which benefits in terms of considerable savings, setting time and consequently assembly, which results in cost benefits for material and time.

[0011]The foregoing is attained with a footing having the shape of a truncated cone, set inverted underneath the ground. Th...

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Abstract

Footing used for the foundation of a wind turbine tower characterized because it provides a stable horizontal platform (1) located at the surface, upon which the tower sections and the heavy elements that are subsequently mounted, viz., gearbox, generator, hub and blades, can be set without sinking.The footing is characterized by its inverted truncated cone shape, and by the savings in material estimated at 20%, as well as for its union with the tower (4) through a pedestal (3) and its corresponding embedded tensioning elements in the footing.

Description

OBJECT OF THE INVENTION[0001]The present invention refers to a footing used in the tower foundation. This footing provides a stable surface for placement and handling of, on the one hand, the various sections of the tower during their assembly, and, on the other, the heavy elements included inside the wind turbine.BACKGROUND OF THE INVENTION[0002]Wind turbine towers stand on a ground supported by a footing. The footings used differ in design and sizes, though the tendency is to save on material as much as possible while still conserving the features necessary to support the tower, nacelle and other elements making up the wind tower. The material used for composing the footing is concrete, which is poured directly into the hole dug into the ground and allowed to set prior to erecting the tower. Once the tower has been completed, the nacelle is brought up followed by the heavy elements, the hub and blades.[0003]The tower comprises various sectors that are gradually assembled. A crane ...

Claims

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Application Information

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IPC IPC(8): E02D27/42E02D27/32
CPCY02E10/728F03D11/045F03D13/22Y02E10/72
InventorGALLARDO HERNANDEZ, RODRIGOGONZALEZ SANTAMARTA, FRANCISCO JAVIERDOBLAS TELLECHEA, NAIARARUIZ URIEN, IGNACIO
OwnerGAMESA INNOVATION & TECH SA