Assessment of bubble curtain attenuator techniques for underwater pile driving noise mitigation.

2009 ◽  
Vol 125 (4) ◽  
pp. 2518-2518
Author(s):  
Michael A. Slater
Keyword(s):  
Pile Driving ◽  
Noise Mitigation ◽  
Bubble Curtain

scholarly journals Wind creates a natural bubble curtain mitigating porpoise avoidance during offshore pile driving

2016 ◽  
Author(s):  
Anne-Cécile Dragon ◽  
Miriam J. Brandt ◽  
Ansgar Diederichs ◽  
Georg Nehls
Keyword(s):  
Pile Driving ◽  
Bubble Curtain

Noise mitigation with balloon arrays during pile driving activities in the underwater environment

2015 ◽  
Author(s):  
Yu-Hang Wu ◽  
Tien-Siang Ling ◽  
Wei-Shien Hwang ◽  
Chi-Fang Chen
Keyword(s):  
Pile Driving ◽  
Noise Mitigation ◽  
Underwater Environment

Modeling the noise mitigation of a bubble curtain

2019 ◽  
Vol 146 (4) ◽  
pp. 2212-2223 ◽  
Author(s):  
Tobias Bohne ◽  
Tanja Grießmann ◽  
Raimund Rolfes
Keyword(s):  
Noise Mitigation ◽  
Bubble Curtain

scholarly journals Study of the Sound Escape with the Use of an Air Bubble Curtain in Offshore Pile Driving

2021 ◽  
Vol 9 (2) ◽  
pp. 232
Author(s):  
Yaxi Peng ◽  
Apostolos Tsouvalas ◽  
Tasos Stampoultzoglou ◽  
Andrei Metrikine
Keyword(s):  
Noise Reduction ◽  
Wave Field ◽  
Ecological Impact ◽  
Free Field ◽  
Pile Driving ◽  
Noise Prediction ◽  
Underwater Noise ◽  
Air Bubble ◽  
Noise Transmission ◽  
Bubble Curtain

Underwater noise pollution generated by offshore pile driving has raised serious concerns over the ecological impact on marine life. To comply with the strict governmental regulations on the threshold levels of underwater noise, bubble curtains are usually applied in practice. This paper examines the effectiveness of an air bubble curtain system in noise reduction for offshore pile driving. The focus is placed on the evaluation of noise transmission paths, which are essential for the effective blockage of sound propagation. A coupled two-step approach for the prediction of underwater noise is adopted, which allows us to treat the waterborne and soilborne noise transmission paths separately. The complete model consists of two modules: a noise prediction module for offshore pile driving aiming at the generation and propagation of the wave field and a noise reduction module for predicting the transmission loss in passing through an air bubble curtain. With the proposed model, underwater noise prognosis is examined in the following cases: (i) free-field noise prediction without the air bubble curtain, (ii) waterborne path fully blocked at the position of the air bubble curtain while the rest of the wave field is propagated at the target distance, (iii) similarly to (ii) but with a non-fully blocked waterborne path close to the seabed, and (iv) air bubble curtain modeled explicitly using an effective medium theory. The results provide a clear indication of the amount of energy that can be channeled through the seabed and through possible gaps in the water column adjacent to the seabed. The model allows for a large number of simulations and for a thorough parametric study of the noise escape when a bubble curtain is applied offshore.

Attenuating underwater pile driving noise at a remote receiving location using an encapsulated bubble curtain

2012 ◽  
Vol 131 (4) ◽  
pp. 3356-3356 ◽  
Author(s):  
Mark S. Wochner ◽  
Kevin M. Lee ◽  
Preston S. Wilson
Keyword(s):  
Pile Driving ◽  
Bubble Curtain

Noise Mitigation During Pile Driving Efficiently Reduces Disturbance of Marine Mammals

2016 ◽  
pp. 755-762 ◽  
Author(s):  
Georg Nehls ◽  
Armin Rose ◽  
Ansgar Diederichs ◽  
Michael Bellmann ◽  
Hendrik Pehlke
Keyword(s):  
Marine Mammals ◽  
Pile Driving ◽  
Noise Mitigation

Bubble curtain effectiveness during impact pile driving for monopile installation at the Coastal Virginia Offshore Wind project

2020 ◽  
Vol 148 (4) ◽  
pp. 2627-2628
Author(s):  
Jennifer L. Amaral ◽  
Adam S. Frankel ◽  
James H. Miller ◽  
Gopu Potty ◽  
Ying T. Lin ◽  
...  
Keyword(s):  
Offshore Wind ◽  
Pile Driving ◽  
Bubble Curtain

scholarly journals Turning Scientific Knowledge into Regulation: Effective Measures for Noise Mitigation of Pile Driving

2021 ◽  
Vol 9 (8) ◽  
pp. 819
Author(s):  
Carina Juretzek ◽  
Ben Schmidt ◽  
Maria Boethling
Keyword(s):  
Marine Environment ◽  
Scientific Knowledge ◽  
Wind Farm ◽  
Scientific Evidence ◽  
Wind Farms ◽  
Offshore Wind ◽  
Mitigation Measures ◽  
Pile Driving ◽  
Noise Mitigation ◽  
The Impact

Pile driving is one of the most intense anthropogenic noise sources in the marine environment. Each foundation pile may require up to a several thousand strokes of high hammer energy to be driven to the embedded depth. Scientific evidence shows that effects on the marine environment have to be anticipated if mitigation measures are not applied. Effective mitigation measures to prevent and reduce the impact of pile driving noise should therefore be part of regulation. The role of regulators is to demonstrate and assess the applicability, efficiency and effectiveness of noise mitigation measures. This requires both, scientific knowledge on noise impacts and the con-sideration of normative aspects of noise mitigation. The establishment of mitigation procedures in plans and approvals granted by regulatory agencies includes several stages. Here, we outline a step-wise approach in which most of the actions de-scribed may be performed simultaneously. Potential measures include the appropriate maritime spatial planning to avoid conflicts with nature conservation, site development for offshore wind farms to avoid undesirable activities in time and space, coordination of activities to avoid cumulative effects, and the application of technical noise abatement systems to reduce noise at the source. To increase the acceptance of noise mitigation applications, technical measures should fulfil a number of requirements: (a) they are applicable and affordable, (b) they are state-of-the-art or at least advanced in development, (c) their efficiency can be assessed with standardised procedures. In this study, the efficiency of noise mitigation applied recently in offshore wind farm construction projects in the German North Sea is explained and discussed with regard to the regulation framework, including the technical abatement of impulsive pile driving noise.

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