Hexabase

Offshore wind turbines in deep water require-resolved foundation structures such as Jackets and TripodsAs an alternative to these variants, the Maritime Offshore Group GmbH (MOG) from Bremen has developed the so-called "HEXABASE". This foundation structure has a hexagonal plan and is to be realized with identical tube diameters. It is only the wall thickness of the pipes can be varied to accommodate the different sizes of stresses in the various truss planes can. Depending on the market situation there are to be used HFI steel pipe (high frequency induction welding process) or spirally welded pipes.

The HEXABASE can be planned consideredPre-Pilingor "post-Piling" variant. In the variant with pre-piling out the piles are driven into the seabed and subsequently raised the HEXABASE. A positive connection between the jacket legs and the piles is performed by the connection with a high-strength (grout.

The force transmission from tower to HEXABASE via a transition piece (central pipe nodes). At the foot of HEXABSE the expense of the grouted pipe-in-pipe joints (also called Pile-Sleeve-Connection ) to the driven piles and eventually discharged into the subsoil.