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  4. Scaling laws for unmitigated pile driving: Dependence of underwater noise on strike energy, pile diameter, ram weight, and water depth
 
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Scaling laws for unmitigated pile driving: Dependence of underwater noise on strike energy, pile diameter, ram weight, and water depth

Citation Link: https://doi.org/10.15480/882.4589
Publikationstyp
Journal Article
Date Issued
2022-08-27
Sprache
English
Author(s)
Pein, Jonas von 
Lippert, Tristan  
Lippert, Stephan  
Estorff, Otto von  
Institut
Modellierung und Berechnung M-16  
TORE-DOI
10.15480/882.4589
TORE-URI
http://hdl.handle.net/11420/13616
Journal
Applied acoustics  
Volume
198
Article Number
108986
Citation
Applied Acoustics 198: 108986 (2022-09-01)
Publisher DOI
10.1016/j.apacoust.2022.108986
Scopus ID
2-s2.0-85136526845
Publisher
Elsevier
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.
Subjects
Pile driving
Scaling laws finite element model
Underwater noise
DDC Class
600: Technik
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by/4.0/
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