Review of Laterally Loaded Monopiles Employed as the Foundation for Offshore Wind Turbines

Søren Peder Hyldal Sørensen, Kristian Thoustrup Brødbæk, Martin Møller, Anders Hust Augustesen

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Abstract

Monopiles are often used foundation concepts for offshore wind turbine converters. These piles are highly subjected to latereal loads and overturning moments due to wind and wave forces. Typically, monopiles with diameters of 4 to 6 m and embedded pile lenghts of 15 to 30 m are necessart. In current practice, these piles are normally designed by the p-y curve method although the method is developed and verified for small-diameter, slender piles with diameters up to approximately 2 m. In the present paper, a review of the existing p-y curve formulations for piles in sand is presented. Based on numerical and experimental studies presented in the literature, advances and limitations of the current p-y curve formulations are outlined.
Original languageEnglish
PublisherDepartment of Civil Engineering, Aalborg University
Number of pages54
Publication statusPublished - 2012
SeriesDCE Technical reports
Number137
ISSN1901-726X

Keywords

  • Monopiles
  • Foundations
  • Wind Turbines
  • Offshore

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