Our projects are becoming more international, challenging and above all more unique. This time, Damen Shipyards Group employed us to help raise a large ship so that it could float and be moved. We’ll tell you all about it in this blog post.

Moving an icebreaker from dock to dock

An icebreaker is being built for research purposes for the Australian Antarctic Division. Construction is taking place in Romania and the client is Damen, an international shipping organization. At the moment the 156-meter-long ship is in a dry dock where it is being built. But it must be moved to be able to be completed.

Moving a ship of such a size is only possible by increasing buoyancy. To achieve this they had to raise the ship half a meter. Part of the increase was achieved by attaching airbags to the side of the icebreaker. The other part was an assignment for Cocoon …

Close inspection doors: leave that up to Cocoon

The other part of the increase had to be realized by closing various hatches. The icebreaker is intended to participate in research, because of that all kinds of inspection hatches have been placed. These various hatches (moon pool and drop keel) all contain pipes through which research sensors pass. Sealing these hatches would mean an increase in buoyancy which is exactly what is needed.

This project has been discussed with Cocoon Holland since 2016 and was recently realized. On the sliding layer of the ship we placed cocoon, followed by a wooden plate and then closed with another layer of cocoon. A strong construction was necessary due to the large pressure that is created at 4 to 5 meters water depth. In this way an easily removable, yet watertight seal was created. Read more about the ASRV in this article from Damen.


Successful travel on 20 September 2018

After our work the ship could be successfully moved to a deeper part of the dock. Last September 20 Damen flooded the dock with water and the ship could be moved flawlessly. And that partly due to our cocoon.

Do you want to know more about what we can do with our product? Read our other blog posts, including project Iter, Hemel Hempstead and Aviodome.