Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
Online ISSN : 2185-4688
ISSN-L : 2185-4688
Annual Journal of Civil Engineering in the Ocean Vol.33
MOVABLE-BED EXPERIMENT ON FUNCTION OF AN L-SHAPE GROIN COMBINED WITH DETACHED BREAKWATER OF PERMEABLE PILE STRUCTURE
Naoshi MOMOSEChiaki SUZUKIMasashi SATOTakaaki UDAShinji SATOYukiyoshi KATAYAMAYuji MAEDAToshinori ISHIKAWA
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2017 Volume 73 Issue 2 Pages I_576-I_581

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Abstract
 A movable-bed experiment with a scale model of 1/50 was carried out to investigate the function of an L-shape groin. As a measure to reduce the construction cost of an L-shape groin, the reduction in the number of the concrete blocks to protect the upcoast side of the groin and the removal of part of the breakwater connecting the tip of the groin to offshore breakwater were investigated. Finally, it was concluded that the reduction of part of the breakwater was possible, and the landward end of the groin was not exposed to waves, even when extraordinarily high waves are incident to the coast, suggesting no need to protect the landward end of the groin.
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© 2017 Japan Society of Civil Engineers
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