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US 12,435,482 B2Granted
Wind turbine foundation structure, and method for producing a wind turbine foundation structure
OwnerDaniel Bartminninventor
Life of this patent
Estimating the term…
Abstract
A wind turbine foundation structure comprising a hollow structural member having a longitudinally extending circumferential wall, the wall being bounded at the top by a top end face and bounded at the bottom by a bottom end face, wherein the wall is formed from a mineral building material and in that a wall thickness of the wall tapers from the top end face towards the bottom end face.
Claims3
A method of manufacturing a wind turbine foundation structure, the method comprising:
- building up a formwork on-shore, wherein an annular gap in the formwork tapers from a first end towards a second end, the annular gap being larger at the first end than the second end,
- pouring concrete into the annular gap in the formwork, wherein when the concrete is poured, the first end of the formwork is on a bottom side and the second end of the formwork is on a top side,
- curing the concrete such that the cured concrete forms a hollow structural element with a wall thickness having a taper resulting from the taper of the annular gap in the formwork, the hollow structural element having a first end face and a second end face, the first end face being cured adjacent to the first end of the formwork and the second end face being cured adjacent to the second end of the formwork,
- rotating the hollow structural element by 180° such that the second end face is on the bottom side and the first end face is on the top side,
- shipping the hollow structural element to an offshore installation site, and
- ramming or vibrating the hollow structural element with the second end face, as seen in an installed condition, into a seabed at the installation site.
3 more elements
Dependencies are inferred from the claim text.