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1. (WO2018139918) A METHOD AND TOOL FOR INSTALLATION OF AN OFFSHORE WIND TURBINE

Pub. No.:    WO/2018/139918    International Application No.:    PCT/NL2018/050036
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Fri Jan 19 00:59:59 CET 2018
IPC: E02B 17/00
B66C 1/10
E02D 27/42
E02D 27/52
F03D 13/25
B66C 1/42
Applicants: ITREC B.V.
Inventors: VAN RUYVEN, Stefan Cornelis
HOOFTMAN, Maarten Hugo
VEHMEIJER, Terence Willem August
ROODENBURG, Joop
Title: A METHOD AND TOOL FOR INSTALLATION OF AN OFFSHORE WIND TURBINE
Abstract:
The invention relates to a method and a tool for the installation of a foundation of an offshore wind turbine, said foundation comprising a monopile that is driven into the seabed by means of a pile driving device. The foundation may also comprise a transition piece that is to be mounted on top of the monopile that has been driven into the seabed. According to the invention the method comprises, after the step of lowering a monopile and placing the monopile on the seabed by means of a crane and a upending and lifting tool attached to the lifting block of that crane, the step of connecting the upending and lifting tool, while still attached to the lifting block of the crane, to a pile driving device. The pile driving device is subsequently retained by said upending and lifting tool.