Influence of vibro-driver frequency on pile penetration in dry sand in a geotechnical centrifuge
L.E.J. Simonin (Université Catholique de Louvain)
H. Rattez (Université Catholique de Louvain)
W.F. Ovalle Villamil (TU Delft - Geo-engineering)
Miguel Angel Cabrera (TU Delft - Geo-engineering)
G. Anoyatis (Katholieke Universiteit Leuven)
S. François (Katholieke Universiteit Leuven)
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Abstract
This article presents results of an experimental campaign on a scaled vibro-driver in sand conducted in TU Delft’s geo-centrifuge as part of the GEOLAB funded project FoundEx. The aim of this experimental campaign is to explore the different parameters governing the vibro-driveability of a monopile within sand to improve the understanding of the phenomena at play, quantify the influence of driving parameters, and refine their selection to open new perspectives for the industry. After explaining the governing principles of vibro-drivers and the design of the miniature vibro-driver, the results of vibro-driving in dry dense sand under 50g for different vibrating frequencies are presented. These results are then analysed to quantify the relation between the vibratory frequency and the pile penetration, as well as its penetration rate.