Effective works Phase 2 - 3
2011 : week 23
Fabrication and assemblage of the steel structures for the Jacket foundations are ongoing at different yards all over the world, (Belgium-Netherlands-United Kingdom-Poland-Germany-Spain-South Korea)
Seabed preparations by dredging at the locations of the foundations are complete for phase II and for phase III of the project
The pile driving works started in area B of the windfarm on Wednesday 6th of April 2011. Steel piles of 40 to 50 m are driven into the seabed by a hammer installation mounted on the jack up platform Buzzard. These so called "pin-piles" are the anchors to seal the jacket foundations into the seabed.The length of the piles depends on the soil conditions.To assure the correct locations of the piles a template is lowered onto the seabed.
The pin-piles for the foundation of the offshore transformer station are already driven.
In area B 92 % of the pin-piles are driven.
The vessel POMPEI is mobilised for the dredging and the cleaning of the pin-piles. After these works pin-pile covers will be installed on the piles
The transportation barge Stemat 87 was loaded on 07/06/2011 at the fabrication yard Smulders in Hoboken with the first jacket foundation and will be towed by the Motortug Westsund to the Thorntonbank
The Heavy Lift Vessel "Rambiz" is now on the Thorntonbank waiting for the installation of the first jacket foundation, weather permitted, on Friday June 10th.
The 33 kV infield cables, making the future connection between the wind turbines, are in production in Karlskrona, Sweden.
The steelstructure of the Offshore Transformer Station is in erection in the workyard of HSM Schiedam, Netherlands.
Repower, the contractor for the wind turbines, started purchasing parts of the wind turbines:the towers by AMBAU-Cuxhaven Germany, the blades by LM Denmark, the generators by VEM Germany and the gearboxes by 2 constructors, WINERGY-Vörde Germany and HANSEN-Belgium.
Directional drillings started on land for the 150kV cable laying onshore which is about to start half October this year.
|Preparation of drilling tubes and drilling pits onshore for 150kV land cables|
|Load out at Smulders Hoboken of the first jacket foundation|