Suitability of a pile group foundation for an offshore wind turbine

Y. S. Kuo, K. Abdel-Rahman, K. T. Wu, T. Y. Huang, M. Achmus

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)

摘要

Monopile, tripod and jacket structures are the most popular foundations adopted in offshore wind farms in Europe. Piles with diameters mostly larger than 2 m are usually installed for these foundations. More than 500 offshore wind turbines shall be installed in the Taiwan Strait in the next 20 years. However, due to limited pile driving capacity of the marine engineering industry in Taiwan, the pile group foundation with pile diameters of maximum D = 1.6 m is considered as foundation for offshore wind turbines and a research platform. This paper aims to investigate the behavior of multi-pile-soil system under monotonic lateral load. A three-dimensional finite element model with non-linear material behavior of the subsoil was established. The deformation responses of a pile group platform foundation calculated with FEM under monotonic lateral load are compared with the results calculated with a simplified approach based on the p-y-curves method. The bearing behavior of the pile group platform foundation cannot adequately considered by the simplified approach. To evaluate the suitability of group pile platform foundation, the deformation responses of a typical monopile are considered as reference values. The investigated pile group foundation is more flexible than the monopile, i.e the lateral deformations of the piles are much larger than the deformation of the monopile. However, due to the great stiffness of the platform plate the rotation of the platform is within the usual tolerance for offshore wind turbines and even smaller than the inclination of monopile.

原文English
主出版物標題Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan
發行者International Society of Offshore and Polar Engineers
頁面222-226
頁數5
ISBN(列印)9781880653913
出版狀態Published - 2014 一月 1
事件24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan - Busan, Korea, Republic of
持續時間: 2014 六月 152014 六月 20

出版系列

名字Proceedings of the International Offshore and Polar Engineering Conference
ISSN(列印)1098-6189
ISSN(電子)1555-1792

Other

Other24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan
國家/地區Korea, Republic of
城市Busan
期間14-06-1514-06-20

All Science Journal Classification (ASJC) codes

  • 能源工程與電力技術
  • 海洋工程
  • 機械工業

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