BEACH EROSION DUE TO LARGE COASTAL STRUCTURE AND ITS CONTROL
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Keywords

erosion
beach erosion
structure induced erosion

How to Cite

Tsuchiya, Y., Yamashita, T., & Silvester, R. (1990). BEACH EROSION DUE TO LARGE COASTAL STRUCTURE AND ITS CONTROL. Coastal Engineering Proceedings, 1(22). https://doi.org/10.9753/icce.v22.%p

Abstract

Beach erosion has recently been recongnized as accelerating due to the influence of coastal structures. This tendency is especially severe in Japan where coastal structures are over abundant. Blockage of the longshore sediment transport and changes in the wave field are the most common causes of structure induced beach erosion. In this paper, these are indentified as the first and second causes of erosion. Examples of such beach erosion in Japan are provided. In order to explain the two common erosion causes and beach erosion control, results of numerical simulations of shoreline change by a coastal structure and nearshore currents due to wave fields changed are also shown. In the numerical simulation, a countermeasure for beach erosion which is caused by changing of nearshore currents by the coastal sturcture is proposed.
https://doi.org/10.9753/icce.v22.%25p
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