The drilling boat “Bokalift 1” worked at the beginning of week 37 on the rocky areas to the north of the future wind farm in the bay of Saint-Brieuc.
It left the bay of Saint-Brieuc on September 12 and its return to the area is announced for the end of week 38. The slicing tests are continuing with the Aethra, at the same time as noise measurements by the office of SOMME acoustic study and turbidity measurements by the TBM design office.
Finally, INRAP is carrying out a preventive underwater archeology campaign on the area of the future offshore wind farm in the bay of Saint-Brieuc. The boat TSM Ouessant will work in the area from today for around ten days.
The Aethra ship, chartered by the Prysmian company on behalf of the Ailes Marines , will carry out slicing tests. Prysmian is commissioned by Ailes Marines to supply and install the park's inter-wind turbine submarine cables. The sea slicing tests will be carried out on four main sites, characteristic of the different types of soil in the bay.
The objective of the tests is to validate the slicing tool which will be used for the installation of the inter-wind turbine cables, in order to optimize future construction work on the wind farm and to ensure the safety of future users at the site. interior of the park during its operation (in particular fishermen), by confirming the technical feasibility of burying the cables 100% in the different types of soil encountered.
After the “acquisition” phase which consists of locating the presence of potential explosive devices, the UXO campaign continues with the so-called “identification” phase which consists of precisely identifying whether or not it is a real device. explosive.
If this is the case, it is the clearance divers of the French Navy who are in charge of defusing the explosive device. The GEO IV from the company GEOxyz therefore left the area of the future wind farm in the bay of Saint Brieuc this weekend.
During the September drilling test campaign, Ailes Marines ordered from scientific service providers:
Turbidity monitoring measurements
Acoustic monitoring measurements of underwater noise
Monitoring measurements of the effects of noise on the Saint shell -Jacques
Visual monitoring measurements of mammals and birds
Passive acoustic monitoring measurements of marine mammals
On behalf of Ailes Marines , the BOKALIFT 1 vessel chartered by the Van Oord company will begin drilling tests on September 1st in the area of the future wind farm in the bay of Saint Brieuc. The BOKALIFT 1 vessel will carry out drilling tests on 3 wind turbine locations of the future offshore wind farm.
The objective of this campaign is to validate the drilling tool in order to optimize future construction work and limit impacts. environmental aspects of the works, in particular by limiting underwater noise pollution (compared to pile driving).
