Mooring of wave energy system using dynamically installed anchors

Shiao Huey Chow, Alex Verth, Lucia Zang, Jana Orszaghova, Rosemary Bradley, Hugh Wolgamot, Ryan Beemer

    Research output: Chapter in Book/Conference paperConference paper

    Abstract

    This study investigated the response of a dynamically installed anchor as an integral part of a model scale wave energy system through a field trial performed in the Swan River, Perth, Western Australia. The field trial involved a cylindrical wave buoy, taut-moored by a steel spring and a stiff mooring line to a dynamically installed anchor in a soft soil site. The buoy-spring system was designed to resonate at approximately 1.15 Hz, which is within the high-frequency tail of a spectrum of typical wind generated waves in the Swan River. The dynamically installed anchor was a 37 kg slender cylinder with 60 degree cone tip, with a shaft diameter of 0.089 m and a total length of 0.88 m. In the field trial, the instrumented anchor was first installed by free-falling into the riverbed and found to embed to 2.5 times the anchor length. The anchor was then connected to the model wave buoy-spring system under taut-mooring, and subjected to wave loading before being pulled-out. The anchor was found to produce a pull-out capacity two times the dry anchor weight.
    Original languageEnglish
    Title of host publicationProceedings of the 13th Australia New Zealand Conference on Geomechanics
    EditorsHugo Acosta-Martínez, Barry Lehane
    Place of PublicationPerth
    PublisherAustralian Geomechanics Society
    Pages679-684
    Number of pages6
    ISBN (Electronic)9780994626103
    Publication statusPublished - 1 Apr 2019
    EventThe 13th Australia New Zealand Conference on Geomechanics - Perth Convention and Exhibition Centre, Perth, Australia
    Duration: 1 Apr 20193 Apr 2019
    Conference number: 13
    https://geomechanics2019.com.au/

    Conference

    ConferenceThe 13th Australia New Zealand Conference on Geomechanics
    CountryAustralia
    CityPerth
    Period1/04/193/04/19
    Internet address

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  • Cite this

    Chow, S. H., Verth, A., Zang, L., Orszaghova, J., Bradley, R., Wolgamot, H., & Beemer, R. (2019). Mooring of wave energy system using dynamically installed anchors. In H. Acosta-Martínez, & B. Lehane (Eds.), Proceedings of the 13th Australia New Zealand Conference on Geomechanics (pp. 679-684). Australian Geomechanics Society.