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Validation of Sound Source Simulation due to Offshore Pile Driving

[+] Author Affiliations
Katja Reimann, Juergen Grabe

Hamburg University of Technology, Hamburg, Germany

Paper No. OMAE2015-41146, pp. V001T10A006; 10 pages
doi:10.1115/OMAE2015-41146
From:
  • ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 1: Offshore Technology; Offshore Geotechnics
  • St. John’s, Newfoundland, Canada, May 31–June 5, 2015
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5647-5
  • Copyright © 2015 by ASME

abstract

The influence of wave propagation through the soil on hydro sound immission due to offshore pile driving bears a lot of uncertainties. In acoustic analyses of impact pile driving, the sound source description is essential for wave propagation models. The excited open-ended steel pile and the soil interact with each other. In numerical analyses the choice of the used material law for the soil should be well suited, because of the effect on the pile vibration. Prognoses often use the linear elastic approach for non-cohesive granular materials which does not represent the inelastic material behavior of the soil. On the basis of experimental data, a numerical model to simulate one blow of impact pile driving is validated. A parameter study of the wall friction angle between steel and sand is conducted to investigate the influence on the radiated hydro sound level under drained conditions.

Copyright © 2015 by ASME

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