Cyclic response of shallow onshore wind turbine foundations in dense sand - Archive ouverte HAL Access content directly
Conference Papers Year : 2024

Cyclic response of shallow onshore wind turbine foundations in dense sand

Chisom U Ifeobu
  • Function : Author
  • PersonId : 1317671
Stuart Haigh

Abstract

Onshore wind plays a central role in the renewable energy mix and will be deployed widely across the globe in the coming years. The foundations typically consist of massive reinforced concrete slabs, designed to resist large moment and lateral loads, but of which the response to repeated cyclic loads of very many cycles is still poorly understood. This paper presents the results of a plane-strain centrifuge model test, aimed at evidencing the behaviour of a typical onshore wind turbine foundation to long-term cyclic loading of increasing magnitude. The results highlight the evolution of the accumulated rotation and settlement of the slab with cycle number and the resulting evolution in deformation mechanism from Particle Image Velocimetry (PIV). The test demonstrates that the slab experiences large rotations, close to the maximum allowable requirements from the current design guidelines. This work provides ground for further investigation towards optimal design to enhance the geotechnical performance while reducing the environmental and financial impact of onshore wind turbine foundations.
Fichier principal
Vignette du fichier
Ifeobu_HanoiConference_final.pdf (958.53 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-04312282 , version 1 (28-11-2023)

Identifiers

  • HAL Id : hal-04312282 , version 1

Cite

Chisom U Ifeobu, C N Abadie, Stuart Haigh. Cyclic response of shallow onshore wind turbine foundations in dense sand. 5th International Conference on Geotechnics for Sustainable Infrastructure Development, Dec 2023, Hanoi (Vietnam), Vietnam. ⟨hal-04312282⟩
25 View
33 Download

Share

Gmail Facebook X LinkedIn More