2025_programme: Underwater noise in offshore impact piling including pile-soil contact relaxation
- Day: June 16, Monday
Location / Time: D. CHLOE at 17:40-18:00
- Last minutes changes: -
- Session: 13. Pile driving noise -Radiated noise from offshore wind construction
Organiser(s): Jonas von Pein, Vincent E. Premus
Chairperson(s): Jonas von Pein, Vincent E. Premus
- Lecture: Underwater noise in offshore impact piling including pile-soil contact relaxation
Paper ID: 2173
Author(s): Khairina Anindya Canny, Yaxi Peng, Athanasios Tsetas, Apostolos Tsouvalas
Presenter: Khairina Anindya Canny
Abstract: As the trend shifts toward the installation of larger foundation piles for offshore wind farms, which are associated with lower frequency excitations, accurately predicting the resulting sound and vibrations requires a precise characterization of soil behaviour and pile-soil interaction. In addition to noise emissions caused by pile installation, substrate-borne vibrations are particularly perceptible to various marine biota. Both seabed vibrations and underwater noise raise concerns about ecological impacts, emphasizing the need for predictive models that accurately represent the interactions between pile, soil, and seawater. This paper examines the effects of the inclusion of the pile-soil slip during impact pile driving both in the underwater sound and the seabed vibrations. The pile-soil slip condition is modelled by the introduction of linear springs at the pile-soil interface allowing for relative displacement to develop between the soil and the pile. A case study is conducted to explore the implications of the pile slip condition on vibro-acoustic behaviour, focusing on the two key outputs: the noise levels in the surrounding fluid and particle motion within the substrate. Sensitivity analysis is performed to evaluate how variations in contact conditions during impact piling influence these critical metrics.
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This paper is a candidate for the "Prof. Leif Bjørnø Best Student Paper Award (for students under 35)"
- Corresponding author: Ms Khairina Anindya Canny
Affiliation: Delft University of Technology
Country: Netherlands
