Communication Dans Un Congrès Année : 2024

Sea Bottom Surface Wave Seismic for Windfarm Implantation and Foundations

Résumé

Plans for offshore wind farms are on the increase, and anchoring techniques are diversifying (land-based wind turbines, floating wind turbines, etc.). In this context, precise knowledge of the geomechanical characteristics of the underground media and their local variations is necessary and is sought at the locations of structures during the project phase (design and execution). Seismic waves approach is therefore a priori suitable for providing geomechanical information of the subsurface since S-waves velocity is linked to the shear modulus. However, some areas in the near offshore, as is the case off the south-west coast of Brittany (France), are geologically heterogeneous and the 1D assumption of the Multichannel Analysis of Surface Waves method is not valid.

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Dates et versions

hal-05393450 , version 1 (03-12-2025)

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D. Leparoux, Loïc Michel, Pascal Pelleau, Jean-Marc Rousset, T. Allemand, et al.. Sea Bottom Surface Wave Seismic for Windfarm Implantation and Foundations. First EAGE/SUT Workshop on Integrated Site Characterization for Offshore Renewable Energy, EAGE European Association of Geoscientists and Engineers; Society for Underwater Technology, May 2024, Boston, France. pp.1-1, ⟨10.3997/2214-4609.202480026⟩. ⟨hal-05393450⟩
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