Thank you to everyone who participated in the Dieseko Group GIANT Stories Livestream. Your participation and engagement made the event a success, and we greatly appreciate your time and interest in our work.
Event Highlights:
- Introduction to the GIANT series: Our panel of experts will introduce the groundbreaking GIANT 2000 vibratory hammer, highlighting its key features and capabilities.
- 7-steps Value Approach: Discover this comprehensive 7-steps Value Approach that we employ in our Offshore projects, which played a crucial role in the development of the GIANT series.
- Exclusive Footage: Be the first to see never-before-seen footage of the GIANT 2000 during testing.
- Live Q&A: Engage directly with our experts during the live Q&A session, where you can ask questions, join discussions and gain deeper insights into the GIANT 2000 and our innovative processes.
On July 16th, Dieseko held its first Livestream named Giant Stories. We hope that you enjoyed the livestream and its discussion – but if you havent been able to watch it yet, you can find a recorded version below.
Keep reading to also read the answers to unaswered questions from the live chat, and to sign up for future Livestream updates and updates in regards to the Giant and its data.
Recorded version of the GIANT livestream
Q&A's
Not all questions could be adressed in the allocated 45 min of the Livestream, and thus we have chosen to answer a few of them in writing below, as well as highlight a few key points/ question from the livestream below.
The GIANT
What is the capacity of the GIANT 2000?
The actual GIANT2000, the configuration in which it will be used for its upcoming project, has a capacity of 2000T line pull, approx. 4400 Tons of centrifugal force at 23,3 Hz nominal, and works with piles with a dia. up to 6m.
These specifications can be adjusted by using our modular approach and changing the baseplate and/or upending arm. Today we are looking at sizes up to a GIANT 4000.
What were the results of the SAT (Site Acceptance Test)?
That the overall design and core components are ready for the campaign. We have detected some areas for improvement, of which 70% of those were unrelated to the vibratory hammer. Such as unexpected resonance in parts, and project-related structures and hose management (which have a huge impact on handling the GIANT).
What’s the next step for the GIANT?
As its first project, we will be installing 64 XXL-monopiles on behalf of Saipem in the Courseulles-sur-Mer Offshore Wind Farm project. Afterwards, the GIANT could work on various applications in other installation or decommissioning projects due to its modular design, allowing for a range of configurations from 1000 to 4000kgm of eccentric moment. We are already in preparation for a follow-on campaign in Q3, 2025.
Data
Will Dieseko be open to sharing gathered data from the GIANT and its project once collected and analysed?
Yes. We will share this information with universities, institutes, developers and clients with the goal of expanding our common understanding of the industry, machines and technologies. The only criteria we would have is that further research and analyses which use this data is also publicly shared in favour of the industry.
Why would you need data during and after operations?
Data collection at these moments is essential It hasn’t been done before and will provide valuable insights into the behavior of the machine, monopiles, and soil. By utilizing real-time data, we can make corrections and gain a better understanding of the installation progress. After installing the 64 monopiles, we can also compare the measured values with the predicted values. This comparison will enable us to work more precisely in the future, both in terms of logistics and design, as well as load capacity.
What data are you measuring when installing piles?
In general, we measure Oil –flow, –temperatures, –levels and –pressures. With respect to vibrations, we measure frequency, amplitude, and centrifugal forces. More generally we gather data on the verticality / horizontality of upending arm and base plate, clamp positions, hammer descending speed, and geographical hammer positions. Also, any alarms are logged and instantly shown if occuring. It is good to note that the primary reason for why we measure this data is to gather information on whether the hammer is working to expectation or not, and to gauge “hammer health”.
Offshore
How early in the process should those involved be in contact for Offshore projects?
Reaching out between 1.5 and 5 years before the project begins is the ideal time to achieve the best project outcomes together. This allows for activities such as pile design (and local production), preparation and testing of soil conditions, and considering retrackting during installation. Complimentary technologies can then also be considered in case simulations find difficulties with reaching target depth. The earlier these factors are addressed, the greater the impact and opportunities for optimal project realization.
What are the advantages of a vibro hammer over an impact hammer?
There are several. To name a few:
- Speed: Vibro is up to 10 times faster than impact hammering
- Pile run: due to the use of clamps, pile run is impossible
- Noise: Underwater noise levels are very low and within legal standards compared to impact hammering. This makes vibrating a real sustainable installation method.
- Correction: during the installation process the pile position can be adjusted
- Saving costs: due to the smaller impact from the vibro technology, the pile can be designed with less steel
- Pile handling: Through, for example, upending or the functional use of the Vibratroy hammer as a lifting tool, no auxiliary tools are required to erect and position the monopiles
Where’s the ecological focus?
Dieseko works with 6 innovative pillars under our Founding the Future program. Each of these pillars are our aims in regard to the environment. These include Circularity, Noise reduction, Zero emissions, Limited vibrations, Remote diagnostics and Renewable energy. To read more about our environmental aims or our innovative pillars, we guide you to this webpage or our ESG.
Did Dieseko see the announcements of Orsted regarding Jetting piles down to target depth without the use of a vibrohammer? What are your thoughts on this?
Yes, of course we are following these developments. We encourage any further research into environmentally friendly installation and decommissioning methods of monopiles. This specific development shows us that large developers are putting these methods high on their agenda, just as Dieseko and it’s partners do.
Dieseko together with, in this case, GBM are working on an integrated vibro-jet system with quite similar features to Orsted’s but in combination with vibro. We know that combining vibro and jetting will increase the possible application areas and make this technique suitable for many different soil types, which alligns with our vision of bringing piles to depth regardless of the soil conditions.
Does Dieseko only focus on offshore wind with this design?
Most definitely not. The GIANT series could also be used for near-shore marine infra, energy projects and decommissioning markets. We also have the biggest worldwide rental fleet, containing a variety of single or double block vibro hammer types which are typically used in non-wind projects.
Do you operate from the Netherlands?
Our head head office is in Sliedrecht (close to Rotterdam), however, over the years we have developed similar teams and rental fleets in the USA, Australia, China and Poland from which we can deliver the same services.
Updates
At Dieseko Group, we believe that “Knowledge is power”, and we translate that into practice through collecting data during operations and testing and using it for further analyses. This was of particularly of note with the GIANT 2000. We’ve been collecting an abundance of data (pre, during and post operations) and doing a plethora of different analyses. We believe that with this data we can further enhance our operations and efficiency and minimize risk.
Though we collect it for our own analyses, we think that a lot of this data is useful for the general public and therefore wish to share some of it with you in case it could be of use for your own research. Sign up through the form below to be kept up to date with our analyses or results, and when we decide to publish some of our data.
PVE GIANT 2000 Upending Vibro
Synchronous operation and testing of hose reels for the GIANT 2000
