2025_programme: Evaluating the Applicability of Scaling Laws for Mitigated Pile Driving Noise to Highly Frequency Dependent Mitigation Systems

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  • Day: June 16, Monday
      Location / Time: D. CHLOE at 17:20-17:40
  • 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: Evaluating the Applicability of Scaling Laws for Mitigated Pile Driving Noise to Highly Frequency Dependent Mitigation Systems
    Paper ID: 2271
    Author(s): Jonas von Pein, Matthias Ram
    Presenter: Jonas von Pein
    Abstract: The installation of offshore wind turbines usually requires the driving of piles into the seabed. The pile driving activity leads to underwater noise with the potential of negative consequences for the marine fauna, such as behavioral changes or hearing impairments. To address these concerns, many countries have established noise limits for pile driving activities, necessitating effective noise mitigation measures. To assess the sound levels and to optimize noise mitigation measures several modelling approaches have been developed in the last decade. These include numerical and empirical models. A semi-empirical approach for the estimation of the sound levels are the scaling laws for unmitigated and mitigated impulsive pile driving scenarios. It has been shown that these lead to reliable estimates for several different scenarios.\n\nThe recently published scaling laws for mitigated pile driving noise consider the influence of the strike energy, pile diameter, ram weight, water depth, and mitigation system such as double big bubble curtain (DBBC) and the combination of a noise mitigation screen and a DBBC. \nHowever, the noise mitigation combination that has been most widely used in Germany is the combination of a Hydro Sound Damper (HSD) system directly at the pile and a DBBC. The insertion loss of the HSD, the DBBC and a combination thereof is strongly frequency dependent.\n\nWithin this paper, publicly available measurement data is compared to the trends derived for mitigated pile driving to determine whether the scaling laws can also be applied to the popular HSD/DBBC combination.
      Download the full paper
    This paper is a candidate for the "Prof. John Papadakis award for the best paper presented by a young acoustician(under 40)"
  • Corresponding author: Dr Jonas von Pein
    Affiliation: DHI Wasy GmbH
    Country: Germany

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