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Dispersion Characteristics of Wave Forces on Interlocking Caisson Breakwaters by Cross Cables
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 Title & Authors
Dispersion Characteristics of Wave Forces on Interlocking Caisson Breakwaters by Cross Cables
Seo, Ji Hye; Yi, Jin Hak; Park, Woo Sun; Won, Deck Hee;
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Damage level of coastal structures has been scaled up according to increase of wave height and duration of the storm due to the abnormal global climate change. So, the design criteria for new breakwaters is being intensified and structural strengthening is also conducted for the existing breakwaters. Recently, interlocking concept has been much attention to enhance the structural stability of the conventional caisson structure designed individually to resist waves. The interlocking caisson breakwater may be survival even if unusual high wave occurs because the maximum wave force may be reduced by phase lags among the wave forces acting on each caisson. In this study, the dispersion characteristics of wave forces using interlocking system that connect the upper part of caisson with cable in the normal direction of breakwater was investigated. A simplified linear model was developed for computational efficiency, in which the foundation and connection cables were modelled as linear springs, and caisson structures were assumed to be rigid. From numerical experiments, it can be found that the higher wave forces are transmitted through the cable as the angle of incident wave is larger, and the larger the stiffness of the interlocking cable makes larger wave dispersion effect.
interlocking;caisson breakwater;numerical analysis;unusual wave;force dispersion;
 Cited by
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Proposal of Sliding Stability Assessment Formulas for an Interlocking Caisson Breakwater under Wave Forces, Journal of Korean Society of Coastal and Ocean Engineers, 2017, 29, 2, 77  crossref(new windwow)
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