Integrated 3D Ground Models for Cost-effective Foundation Design, Construction and Risk Reduction of Offshore Windfarms

An integrated ‘Geoteam’ has used state-of-the-art geophysics and ground modelling software and interpretative techniques to reduce the amount of ground investigation required and improve the understanding of the site. This was achieved by integrating an interpretation of available geophysical data with the geotechnical data acquired during the site investigations and the findings of a detailed geological desk study, to build a 3-dimensional ground model for the site and create bespoke maps characterising the subsurface ground conditions of the site. This innovative integration of data into a single multi-purpose 3D ground model has helped the wind farm developer reduce geotechnical investigation costs and provide reliable information for the turbine design and installation.

The project outputs have also proven to be an effective method for the identification, understanding and communication of geological and geotechnical risk to the developer and designer, thus allowing them to make informed choices