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Effects of breakwater spacing on sand entrapment

Author(s): Michael M. Harris; John B. Herbich

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Abstract: Both breakwater distance from the shoreline and the gap between successive breakwaters are shown in a model study to be important factors in determining the amount of sand that can be entrapped by an offshore breakwater. Using an experimentalist's approach, this model study examines the effect of different gap spacings between successive breakwater for several cases that vary breakwater distance from the original shoreline. The purpose of the experiment was to quantify the effect of different spacings on the sand volume entrapped in the sheltered area of a breakwater. Experimental data are compared with available field and model studies in dimensionless form, and a relationship between the amount of sand accumulated in the sheltered area and the distance of the breakwater from the shoreline is given.

DOI: https://doi.org/10.1080/00221688609499313

Year: 1986

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