RECOVERY OF SANDY BEACH BY GRAVEL NOURISHMENT - EXAMPLE OF NINOMIYA COAST IN KANAGAWA PREFECTURE, JAPAN

Toshinori Ishikawa, Takaaki Uda, Shiho Miyahara, Masumi Serizawa, Minoru Fukuda, Yasutoshi Hara

Abstract


The effect of gravel nourishment on the Ninomiya coast, located west of the damaged site of the Seisho Bypass, was investigated. On the basis of field data, a method of recovering the sandy beach by gravel nourishment was numerically investigated using the BG model. As a facility to prevent nourishment gravel from being transported alongshore, two groins were considered, and their effectiveness was shown. The high stability of the recovered beach and the effectiveness of gravel nourishment were confirmed.

Keywords


Gravel nourishment; Ninomiya coast; BG model; beach changes; groins

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References


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DOI: https://doi.org/10.9753/icce.v34.sediment.6