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US 9,670,909 B2Granted
Wind turbine foundation and wind turbine
AssigneeWobben Properties GmbH
InventorNorbert Hölscher
Life of this patent
Estimating the term…
Abstract
A wind energy plant foundation is provided with a plurality of ready-made concrete foundation segments. The foundation segments have a plurality of first and second sheaths which serve to receive tension wires for bracing the foundation segments.
Claims4
A foundation for receiving a wind energy plant tower with a plurality of tower segments, the foundation comprising:
- a plurality of pre-formed concrete foundation segments, each foundation segment having a plurality of first and second sheaths that are configured to receive tension wires for bracing the foundation segments, wherein each foundation segment has an under side, an upper side configured to receive a lower tower segment of the plurality of foundation segments, an inner side, an outer side having an inward curvature substantially over its entire surface, two side faces and an outer section, wherein the plurality of first sheaths extend parallel to the under side of the foundation segment and the plurality of second sheaths extend between the outer section and the upper side of the foundation segment or parallel to the two side faces, wherein the plurality of second sheaths have a curvature that is similar to the inwardly curved outer side.
A wind energy plant comprising:
- a wind energy plant foundation including:
- a plurality of pre-formed concrete foundation segments, each foundation segment having a plurality of first and second sheaths that are configured to receive tension wires for bracing the foundation segments, wherein each foundation segment has an under side, an upper side configured to receive a lower tower segment of the plurality of foundation segments, an inner side, an outer side having an inward curvature substantially over its entire surface, two side faces and an outer section, wherein the plurality of first sheaths extend parallel to the under side of the foundation segment and the plurality of second sheaths extend between the outer section and the upper side of the foundation segment or parallel to the two side faces, wherein the plurality of second sheaths have a curvature that is similar to the inwardly curved outer side, and
- tension wires located in the first and second sheaths, wherein the foundation segments are braced by the tension wires in the first and second sheaths.
Dependencies are inferred from the claim text.