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Offshore Wind Webinar: Monopile Optimization and Recent Developments
Abstract: Monopile design has evolved significantly over the past decade to accommodate the specific needs of the offshore wind sector. This presentation will cover the evolution of design methods from the traditional Oil & Gas type models for lateral pile behaviour to the current methods based on 3-D Finite Element analysis. The role of 3D FEA in capturing scale effects for large diameter pile applications such as the 10m+ diameter piles supporting offshore wind turbines shall be explored. The different components of resistance including compressive soil resistance, shear transfer, base resistance, etc... shall be identified and how these can be captured in design methodologies will be discussed. The critical role of model calibration shall also be covered with particular focus on stiffness parameters at relatively low strain levels. Challenges and recommendations for site investigation techniques to capture the required model inputs shall be proposed. Finally, recommendations for new research topics will be discussed including the role of soil damping in system performance.

Bio: Paul Doherty is the Managing Director of Gavin and Doherty Geosolutions (GDG), an engineering consultancy which he founded a decade ago and has since grown to a team of 100 people, working on a range of projects in the marine and offshore sectors. Paul is a geotechnical engineer and a specialist in pile behaviour and soil-structure interaction. He has published widely on both axial and lateral capacity of driven piles and has worked on over 30GW of offshore wind farm projects around the world.

May 28, 2021 12:00 PM in Eastern Time (US and Canada)

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