Geotechnics for Sustainable Infrastructure Development pp 1337-1344 | Cite as
On the Application and Benefits of an Integrated Geophysical and Geotechnical Digital Ground Model to Optimize a Site Investigation Survey for an Offshore Wind Farm Project
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Site investigation is an integral and critical part in the development of any offshore wind farm (OWF) project. Due to the very large area of site coverage (tens of km2) and to the high cost associated with the investigation, coupled with the challenges of working in an offshore environment and changing priorities in terms of budget, schedule and design/ construction/ operation decisions, it is important to optimize the site investigation based on sound engineering principles, existing best practices and by making the best use of the existing ground condition understanding. This paper describes the use of a digital ground model, which integrates geophysical and geotechnical data, as a powerful tool to help create a fully justified strategy for the next phase of site investigation of an OWF project in Taiwan. The principal components of a ground model are described and discussed, following up with the important task of reviewing existing data and evaluating the reliability of the datasets. The benefits of establishing and using a digitized ground model are well understood in the UK and Northern Europe, and the Authors are looking forward to the proper usage of this tool in Asia, where recent developments are taking place on an impressive scale.
Keywordsgeophysics digital ground model site investigation offshore wind farm geotechnical
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The Authors acknowledge the support of Clients of OWF project.
- Muir Wood, A. & Knight, P. (2013). Site investigation and geotechnical design strategy for offshore wind development. Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013.Google Scholar
- Power, P. Clare, M., Rushton, D. & Rattley, M. (2011). Reducing Geo-risks for Offshore Developments. In Vogt, Schuppener, Straub & Bräu (eds) Proceedings of the 3rd International Symposium on Geotechnical Risk and Safety, pp 217-224.Google Scholar
- Rushton, D., Jardine, W., Harrison, D. & Hill, A. (2014). Redeveloping the North Sea – Ground Model Data Integration using a GIS. Proceedings of the UK Hydrographic Conference.Google Scholar
- SUT (2014). Guidance notes for the Planning and Execution of Geophysical and Geotechnical Ground Investigations for Offshore Renewable Energy Developments. 1st edition. London: Society for Underwater Technology.Google Scholar
- Terente, V., Owen, M., Higgs, D. & Ellery, G. (2016). Derivation of Ground Models and Characteristic Geotechnical Profiles in Offshore Wind Farms at pre-FID stage. International Journal of Offshore and Polar Engineering.Google Scholar
- Thomas, S. (2017). A Phased and integrated data interpretation approach to site characterisation. Proc. Int. Conf. Offshore Site Investigation and Geotechnics. London, UK.Google Scholar