Abstract
In this work, the problem of underwater noise generated during the offshore installation of steel monopiles is addressed. The monopiles are driven into place with the help of hydraulic hammers. During installation, the underwater noise levels generated can be very high and harmful for the marine life. A linear semi-analytical model is developed which is able to represent the dynamics of the coupled vibro-acoustic system. The pile is modelled using a high order thin shell theory whereas both water and soil are modelled as three-dimensional continua. The results indicate that the near-field response in the water column consists of pressure conical waves due to the the supersonic compressional waves in the pile generated by the impact hammer. The soil response is dominated by vertically polarised shear waves. Scholte waves are also generated at the water-seabed interface and can produce pressure fluctuations in the water column that are particularly significant close to the sea floor.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
