Method for installation of an offshore wind turbine foundation monopile
AssigneeItrec B.V.
InventorPieter Dirk Melis VAN DUIVENDIJK
Life of this patent
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Abstract
An offshore wind turbine foundation monopile in a seabed, the monopile having a foot end, a top end, and a longitudinal axis, by revolving the monopile about the longitudinal axis, such that the monopile makes multiple revolutions while being driven into the seabed.
Claims19
-23. (canceled)
A method for installation of an offshore wind turbine foundation monopile in a seabed, the monopile having a foot end, a top end, and a longitudinal axis, the method comprising:
- supporting the monopile in an upright position with the foot end on the sea floor;
- and
- revolving the monopile about the longitudinal axis, such that the monopile makes multiple revolutions while being driven into the seabed.
An offshore wind turbine foundation monopile, the monopile having a foot end, a top end, and a longitudinal axis, wherein the monopile is configured to be revolved about the longitudinal axis of the monopile during installation of the monopile in the seabed, wherein:
- the monopile is at the foot end provided with excavating blades for removing soil from below the foundation pile and/or wherein the monopile is at an inside surface and/or an outside surface provided with one or more helical ribs to provide the respective inside and/or outside surface of the monopile with a threading to enable the monopile to be screwed into the seabed and/or to remove soil in an axial direction away from the foot end of the monopile;
- and/or
- the monopile is provided with one or more fluidisation conduits extending in the longitudinal direction of the monopile for channeling fluidisation fluid to the foot end of the monopile and with multiple fluidisation fluid nozzles along the circumference of the foot end of the monopile for dispensing jets of fluidisation fluid at the foot end of the monopile during installation of the monopile;
- and/or
- the monopile is configured to be engaged by a pile revolver.
A monopile installation system, the system comprising;
- a monopile support for supporting the monopile in an upright position with the foot end of the monopile on the sea floor;
- and
- a monopile revolver for revolving the monopile about the central axis during installation of the monopile.
Dependencies are inferred from the claim text.