EXPECTED FLUVIAL SAND SUPPLY FROM A RIVER FOR REFORMING A RIVER MOUTH DELTA - AN EXAMPLE OF THE SAKAWA RIVER -

DOI

Bibliographic Information

Other Title
  • 急流河川の河口デルタ復元に要する期待流出土砂量－神奈川県酒匂川の例－

Abstract

The Sakawa River flowing into Sagami Bay has supplied rich sediment to the Seisho coast because of steep river. Sediment supply, however, has been reduced by river bed mining before 1967 and the construction of a dam in the upper basin. Since then, beach was eroded with a significant shoreline recession around the river mouth. In this study, an expected fluvial sand supply for reforming a river mouth delta of the Sakawa River with a steep bed slope was investigated, using the contour-line-change model considering grain size changes. It was found that the expected sand supply from the river necessary for recovering the river delta within 30 years from the present was 1.5x105 m3/yr.

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Keywords

Details 詳細情報について

  • CRID
    1390001205351853824
  • NII Article ID
    130004557928
  • DOI
    10.2208/jscejhe.68.i_1717
  • ISSN
    2185467X
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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