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FIELD INVESTIGATION OF BEACH CHANGES AFTER GRAVEL NOURISHMENT ON JINKOJI AND AKASHI COASTS

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Other Title
  • 神向寺・明石海岸での礫層上への砂の堆積機構の観測

Abstract

 Beach changes after the gravel nourishment were investigated on the Jinkoji and Akashi coasts in Ibaraki Prefecture. The formation of sand layer on the gravel bed due to shoreward sand transport of medium-size and fine sand under the calm wave conditions was observed and three-dimensional beach changes in response to the change in wave direction were also measured between artificial headland Nos. 6 and 7. Even though the sand layer on the gravel layer disappeared due to offshore sand movement under the storm wave conditions, the gravel layer was stably maintained on the foot of the seawall with a foot protection effect.

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Details

  • CRID
    1390001205351952896
  • NII Article ID
    130004697365
  • DOI
    10.2208/jscejoe.70.i_690
  • ISSN
    2185-4688
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
    • Crossref
    • KAKEN

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