FORMATION OF DYNAMICALLY STABLE LAKESHORE UNDER SEASONALLY CHANGING WAVE DIRECTION

Toshinori Ishikawa; Takaaki Uda; Toshiro San-nami; Shusuke Watanabe

doi:10.9753/icce.v32.sediment.85

No. 32 (2010), Sediment Transport and Morphology

No. 32 (2010)

FORMATION OF DYNAMICALLY STABLE LAKESHORE UNDER SEASONALLY CHANGING WAVE DIRECTION

Sediment Transport and Morphology

https://doi.org/10.9753/icce.v32.sediment.85

Published 2011-01-29

Toshinori Ishikawa⁺⁻
Takaaki Uda⁺⁻
Toshiro San-nami⁺⁻
Shusuke Watanabe⁺⁻

Toshinori Ishikawa

Public Works Research Center

Takaaki Uda

Public Works Research Center

Toshiro San-nami

Coastal Engineering Laboratory Co., Ltd.

Shusuke Watanabe

Coastal Engineering Laboratory Co., Ltd.

Proceedings of the 32nd International Conference

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Keywords

lakeshore changes
Lake Kasumigaura
BG model
seasonal changes
spur dike
beach nourishment

How to Cite

Ishikawa, T., Uda, T., San-nami, T., & Watanabe, S. (2011). FORMATION OF DYNAMICALLY STABLE LAKESHORE UNDER SEASONALLY CHANGING WAVE DIRECTION. Coastal Engineering Proceedings, 1(32), sediment.85. https://doi.org/10.9753/icce.v32.sediment.85

Abstract

In the Ukishima region of Lake Kasumigaura, beach nourishment along with the construction of groins has been carried out to recover a sandy beach. After the beach nourishment, part of the nourishment sand was transported away from the beach, turning around the tip of the downcoast groin owing to the oblique wave incidence in winter. To enhance the stability of the beach, the groins were extended and a spur dike was constructed. To design these structures, a numerical simulation using the BG model was carried out, and the optimum shapes were determined by taking into account the seasonally changing wave direction. The effectiveness of the spur dike was numerically evaluated using the BG model.

https://doi.org/10.9753/icce.v32.sediment.85

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References

Noshi, Y., A. Kobayashi and T. Uda. 2009. Model for predicting bathymetric and grain size changes considering equilibrium beach slopes corresponding to composition of grain size and each grain size, Jour. Coastal Res., SI 56, Portugal, 108-112.

Sakai, K., T. Uda, M. Serizawa, T. Kumada and Y. Kanda. 2006. Model for predicting threedimensional sea bottom topography of statically stable beach, Proc. 30th ICCE, 3184-3196.

Serizawa, M., T. Uda, T. San-nami and K. Furuike. 2006. Three-dimensional model for predicting beach changes based on Bagnold's concept, Proc. 30th ICCE, 3155-3167.

Uda, T., T. Yamamoto, N. Itabashi and K. Yamaji. 1996. Field observation of movement of sand body due to waves and verification of its mechanism by numerical model, Proc. 25th ICCE, 137-150.

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FORMATION OF DYNAMICALLY STABLE LAKESHORE UNDER SEASONALLY CHANGING WAVE DIRECTION

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