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Study on the Lateral Bearing Capacity of Single-Helix Pile for Offshore Wind Power

[+] Author Affiliations
Hongyan Ding, Le Wang, Puyang Zhang, Conghuan Le

Tianjin University, Tianjin, China

Paper No. OMAE2018-77391, pp. V009T10A014; 6 pages
doi:10.1115/OMAE2018-77391
From:
  • ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 9: Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics
  • Madrid, Spain, June 17–22, 2018
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5130-2
  • Copyright © 2018 by ASME

abstract

To support a lighthouse, a trestle and other structures, screw pile has been used as the foundation for more than a hundred years. Because of its efficient installation, high bearing capacity and other advantages, increasing attention has been paid to use it as the offshore wind power foundation. In this research, laboratory test was conducted to study the influence of screw pitch and the diameter of helix on the lateral bearing capacity of single-helix pile, considering the effect of the installation. The results of the single-helix pile were compared with that of steel pipe pile and other methods. According to the test, helix diameter has negligible effect on the lateral bearing capacity of helical pile, but the pitch of helical influence that significantly because of more disturbance of soil.

Copyright © 2018 by ASME

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