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Publisher DOI: 10.1016/j.apacoust.2022.108986
Title: Scaling laws for unmitigated pile driving: Dependence of underwater noise on strike energy, pile diameter, ram weight, and water depth
Language: English
Authors: Pein, Jonas von  
Lippert, Tristan 
Lippert, Stephan 
Estorff, Otto von 
Keywords: Pile driving; Scaling laws finite element model; Underwater noise
Issue Date: 27-Aug-2022
Publisher: Elsevier
Source: Applied Acoustics 198: 108986 (2022-09-01)
Abstract (english): 
Sound produced by marine pile driving activities poses a possible risk to marine life. The assessment and mitigation of this risk requires a prediction of the expected sound levels. While different analytical models have been presented to estimate the decay characteristics of pile driving noise, the estimation of the source level still requires the use of numerical modelling in most cases. The paper at hand discusses the possibilities and limits of estimating approximate source or any other levels by scaling laws, using measurement data from previous projects. The identified main influencing factors include strike energy of the hammer, pile diameter, ram weight, and water depth. The scaling laws are derived from theoretical considerations verified against results of a state-of-the-art finite element model for pile driving noise radiation. The found dependencies are then validated against a set of offshore measurement results. It is shown that the obtained scaling laws provide an option to approximately estimate the sound exposure levels of pile driving activities from one site to the other, within practical ranges of accuracy.
DOI: 10.15480/882.4589
ISSN: 0003-682X
Journal: Applied acoustics 
Institute: Modellierung und Berechnung M-16 
Document Type: Article
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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