Tp-free monopile and method for forming the same
AssigneeSif Holding N.V.
InventorMichel Antoin Marie Kurstjens
Life of this patent
Estimating the term…
Abstract
An offshore structure that includes a pile of a foundation and at least one offshore element mounted on the pile and forming a slip joint, wherein disposed between an inner surface of the offshore element and an outer surface of the pile is a coating, especially an anti-fouling coating, for increasing friction between the two surfaces and/or preventing corrosion of one or both of the surfaces and/or at least two spaced apart areas are provided with a substance, forming a seal between the outer surface and the inner surface, near an upper end of the pile and the off shore element and between a lower end of the off shore element and the pile.
Claims26
An offshore structure comprising a monopile foundation pile and a tower mounted on the pile, and a platform mounted on the pile forming a slip joint with a truncated cone shaped upper end of the pile, wherein the tower is mounted directly to the upper end of the pile using a bolt based mounting provision.
A method for mounting a tower to a truncated cone shaped upper end of an offshore foundation pile, the method comprising:
- fitting a mounting part of a platform over the upper end of the offshore foundation pile;
- forming a slip joint with the upper end of the pile;
- and
- bolting the tower directly to the pile or to a flange provided at or by said upper end of the pile, wherein an operator, standing on said platform or standing within the tower on the pile, can bolt the tower to the pile.
An offshore structure comprising:
- a foundation pile;
- a tower mounted on the pile, wherein the tower is mounted directly to a truncated cone shaped upper end of the pile using a bolt based mounting provision;
- a platform mounted on the truncated cone shaped upper end of the pile and forming a slip joint with the pile;
- and
- a substance comprising at least one of a substantially visco-elastic material or compound of materials or a mouldable, self-adhesive material, wherein the substance is disposed between an inner surface of a mounting part of the platform and an outer surface of the truncated cone shaped upper end of the pile on at least two longitudinally spaced apart areas, and wherein the substance forms a seal between the outer surface and the inner surface.
Dependencies are inferred from the claim text.