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Theoretical comparison of cumulative sound exposure estimates from jacket and tripod foundation construction

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conference contribution
posted on 28.03.2012 by Paul Lepper, Tanja Pangerc, Stephen P. Robinson, Pete D. Theobald
Foundation pile driving during offshore construction has led to increasing concerns regarding radiated noise and its effects on the marine fauna (receptors). In the case of many static offshore developments two commonly used foundation techniques are tripod-constructions involving installation of a series of smaller diameter piles surrounding a central structure and mono-piles using a single larger diameter pile. Pile installation itself may involve sequences of percussive piling at different hammer energies, vibro-piling (more rapid, lower level vibrations) and drilling. In some cases all three techniques are used on a single pile installation. The spectral characteristics, as well as duration and level of the total radiated energy from these techniques can vary significantly and may result in different Sound Exposure Levels (SEL) experienced by marine fauna. This paper theoretically explores the potential difference in total SEL for various receptor scenarios for each of these techniques using available source characteristics data. The total sound SEL’s for each scenario are compared and model sensitivities identified.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

LEPPER, P.A. ... et al., 2011. Theoretical comparison of cumulative sound exposure estimates from jacket and tripod foundation construction. IN: Proceedings of the 4th International Conference and Exhibition Underwater Acoustic Measurement: Technologies & Results, 20th-24th June 2011, Kos, Greece, pp. 731 - 738

Publisher

FORTH/IACM

Version

AM (Accepted Manuscript)

Publication date

2011

Notes

This is a conference paper. The definitive version is available at: http://promitheas.iacm.forth.gr/UAM_Proceedings/?action=nextpage&id=1

ISBN

9789609888356

Language

en

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