Geotechnics
Scour Protection Concept for Wind Farm 'alpha ventus' - German North Sea

Client
Deutsche Offshore Testfeld und Infrastruktur GmbH & Co. KG (DOTI)

Project Location
North Sea, Germany

Year
04/2014

IMPaC’s Scope
Geotechnical engineering

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The offshore wind farm ‘alpha ventus’ is located 45 km Northwest of the island Borkum in the German North Sea with water depths ranging from 25 m to 30 m depending on the tide. It is the first offshore wind farm in operation since 2009.

Monitoring of the bathymetry of the seabed around the WTG foundation by multi-beam echo sounder of research vessels revealed significant scour at the tripod foundation, caused by wind, wave, and current.

IMPaC has been contracted for the elaboration of a scour protection concept for the respective WTG tripod foundation.