SLPCL was commissioned to design the jacket foundation system for the proposed Hohe See Wind Farm offshore substation in the German North Sea, in a move that continues the company’s close relationship with Iemants Staalconstructies.

The relatively large 4,250t topside will be supported by the jacket, alongside 18 J-tubes and two boat landings, in a water depth of 40m.

The wind farm itself will have a maximum operating capacity of 497MW.

Once again, as a German project, the stringent BSH regulations apply.

An unusual feature of this standard is to mandate carrying out much of the structural design to Eurocode 3: the standard structural building code for onshore structures.

Careful application of this code was required to avoid unintended consequences, with SLPCL carefully coordinating with the verification body for the project, DNVGL, to ensure compliance.

From a geotechnical perspective, the BSH standard includes a range of onerous requirements in relation to pile testing.

SLPCL proposed a novel approach to the pile design which minimised the offshore pile testing, and thus vessel waiting time, while adhering to the code and ensuring that the pile would remain driveable.

For more information, contact SLPCL via the enquiries form.