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  • Effects of wave-induced seabed liquefaction on sediment re-suspension in the Yellow River Delta

    Author(s)
    Jia, Yonggang
    Zhang, Liping
    Zheng, Jiewen
    Liu, Xiaolei
    Jeng, Dong-Sheng
    Shan, Hongxian
    Griffith University Author(s)
    Jeng, Dong-Sheng
    Year published
    2014
    Metadata
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    Abstract
    This paper presented the results of wave flume experiments for the process of a silty sediment bed responded to wave action. Silty sediment was sampled from modern Yellow River Delta. In coastal areas, seabed liquefaction and sediment re-suspension were the most significant hydrodynamic processes the seabed sediment presented under wave action. However, few studies have focused on the internal response of sediment under wave action with regard to its role in liquefaction and sediment re-suspension. In this study, four wave height scenarios (5 cm, 7 cm, 10 cm and 18 cm) were tested. Results indicated that the movements of the ...
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    This paper presented the results of wave flume experiments for the process of a silty sediment bed responded to wave action. Silty sediment was sampled from modern Yellow River Delta. In coastal areas, seabed liquefaction and sediment re-suspension were the most significant hydrodynamic processes the seabed sediment presented under wave action. However, few studies have focused on the internal response of sediment under wave action with regard to its role in liquefaction and sediment re-suspension. In this study, four wave height scenarios (5 cm, 7 cm, 10 cm and 18 cm) were tested. Results indicated that the movements of the suspended sediments were dominated by the re-suspension of surface sediment erosion at the initial stage of wave action, whereas the suspended sediments were transported from the internal seabed sediment upward due to wave-induced liquefaction and seepage at a later stage. The observations confirmed that waves enhanced sediment re-suspension by liquefying the soil bed through excess pore pressure accumulations, not simply by excess shear stress.
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    Journal Title
    Ocean Engineering
    Volume
    89
    DOI
    https://doi.org/10.1016/j.oceaneng.2014.08.004
    Subject
    Civil Geotechnical Engineering
    Physical Geography and Environmental Geoscience
    Oceanography
    Civil Engineering
    Maritime Engineering
    Publication URI
    http://hdl.handle.net/10072/63838
    Collection
    • Journal articles

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