With the multifunctional PVE 300MU Upending Vibro Hammer, Dieseko Group is trend setting in the offshore market. By combining vibro technology with up ending and lifting they create an opportunity to save money by saving time and deck space missing the additional lifting equipment. A patent is pending on this 300MU-concept.
In Germany’s North Sea Dieseko Group started working at Global Tech I in August 2012. Here the 300MU has proven to be a successful offshore vibro foundation concept.
Engineering: how vibrating technology evolved due to a new type of vibro hammer
Dieseko Group is market leader in developing and supplying the right foundation equipment to take advantage of the current energy change.
In the Offshore Wind Market saving time is gaining money as total project time decreases.
That is why Dieseko Group developed a new type of vibro hammer, which does not only reduce driving time, but also save on handling time. On deck this 300MU Upending Vibro Hammer brings horizontal stored piles into the vertical position from which they are lifted, positioned and vibrated in one sequence.
During engineering, production and testing, TüV Süd certified building quality and procedures. After a final extensive load test in summer 2012 the company received approval for PVE 300MU vibro hammer including certification for upending and lifting. The maximum centrifugal force of this hammer is over 6100 kN and the lifting power was tested up to 400 ton.
Benefits using this 300MU Vibro Hammer are considerable time savings, reducing deck space occupancy and cost efficiency without additional equipment such as a separate internal lifting tool.
For Hochtief in August the PVE 300MU has successfully vibrated the first piles offshore, ranging from 48 to 70 meters length and a diameter of 2,5m with a total weight up to 300 ton.
Global Tech I
The 300MU is initially developed for anchoring tripod foundations in the Global Tech 1 wind park.
This 400MW project counts 80 turbines in the German EEZ-zone in the North Sea. This project started in August 2012 and upon completion in 2013 it will deliver electricity for an equivalent of 445.000 households.
Three piles anchor each tripod foundation so the 300MU will drive 240 piles. The 300MU is on deck of the Innovation self-elevating vessel and powered by the giant hydraulic power unit PVE 3200. This power unit is equipped with 4 Volvo engines and delivers over 3000 HP and 3200 l/min oil flow. A second 300MU vibro hammer and 3200 power unit stored in Bremerhaven is the backup equipment.
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Press release, November 08, 2012; Image: Dieseko Group