BEACH FILL AT TWO COASTS OF DIFFERENT CONFIGURATIONS

Ichiro Deguchi; Toru Sawaragi

doi:10.9753/icce.v20.77

No. 20 (1986), Conference Proceedings

No. 20 (1986)

BEACH FILL AT TWO COASTS OF DIFFERENT CONFIGURATIONS

Conference Proceedings

https://doi.org/10.9753/icce.v20.77

Published 1986-01-29

Ichiro Deguchi⁺⁻
Toru Sawaragi⁺⁻

Ichiro Deguchi

Department of Civil Engineering, Osaka University

Toru Sawaragi

Department of Civil Engineering, Osaka University

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Keywords

beach fill
borrow sand

How to Cite

Deguchi, I., & Sawaragi, T. (1986). BEACH FILL AT TWO COASTS OF DIFFERENT CONFIGURATIONS. Coastal Engineering Proceedings, 1(20), 77. https://doi.org/10.9753/icce.v20.77

Abstract

Movements of borrow sand replenished at two coasts of different configurations are investigated by analyzing the topographic data which were surveyed periodically after the beach fill placements. One is a long straight beach and borrow sand was placed behind a submerged breakwater. Another is a pocket beach which has an arcshoreline with a groyne at one end and a headland at another. It is found that the amount of borrow sand moved in the longshore direction surpasses the amount of borrow sand transported in the cross-shore direction regardless of the shape of the coast. A clear correlation is also found between displacements of shoreline and changes of sectional areas. These results imply that the deformation of the artificially nourished beach and the dissipation rate of borrow sand can be predicted by the so-called one-line theory.

https://doi.org/10.9753/icce.v20.77

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BEACH FILL AT TWO COASTS OF DIFFERENT CONFIGURATIONS

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