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    Volume 39, Issue 5 (September 2016)

    A Test Apparatus for Alternating Flow in Geotechnical Engineering

    (Received 29 October 2015; accepted 6 May 2016)

    Published Online: 2016

    CODEN: GTJODJ

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    Abstract

    Alternating flows in the ground have a detrimental effect on the internal stability of the ground at the bottom of bodies of water, at offshore structures, coastal protection structures, and revetments. A test apparatus for alternating flow was constructed for the purpose of investigating various problems relating to alternating flow in the ground. It was used to conduct investigations into the stability of granular filters for offshore wind turbines subjected to high levels of alternating hydraulic loads. The design criteria for granular filters subjected to oscillating loads must be considerably more stringent than those for granular filters subjected to unidirectional flow. It was also possible to demonstrate that the hydraulic loads due to waves have a significant effect on the filter stability in the area relevant for offshore structures.


    Author Information:

    Kayser, Jan
    Geotechnics Dept., Federal Waterways Engineering and Research Institute, Karlsruhe,

    Karl, Fabian
    Measurement and Control Technology Dept., Federal Waterways Engineering and Research Institute, Karlsruhe,

    Schürenkamp, David
    Leichtweiß Institute for Hydraulic Engineering and Water Resources, Technical University of Brunswik, Braunschweig,

    Schwab, Nora
    Geotechnics Dept., Federal Waterways Engineering and Research Institute, Karlsruhe,

    Oumeraci, Hocine
    Leichtweiß Institute for Hydraulic Engineering and Water Resources, Technical University of Brunswik, Braunschweig,


    Stock #: GTJ20150252

    ISSN:0149-6115

    DOI: 10.1520/GTJ20150252

    Author
    Title A Test Apparatus for Alternating Flow in Geotechnical Engineering
    Symposium ,
    Committee D18