Design Criteria for Floating Tire Breakwaters

by Volker W. Harms, (M.ASCE), Asst. Prof.; State Univ. of New York at Buffalo, Buffalo, N.Y.,

Serial Information: Journal of the Waterway Port Coastal and Ocean Division, 1979, Vol. 105, Issue 2, Pg. 149-170

Document Type: Journal Paper


Wave-transmission and peak-mooring force design curves were generated for the Goodyear and Wave-Guard floating tire breakwaters from measurements on ⅛-scale and ¼-scale models using regular and irregular waves, and found to be in good agreement with available full-scale data. These curves may be used to determine the breakwater size needed to attenuate a given regular design wave to an acceptable level, and also to determine the maximum mooring load associated with this. A simple semi-empirical energy-dissipation model was developed and found to simulate measured wave-transmission characteristics with sufficient precision to be useful in many engineering applications; e.g., the ratio of transmitted to incident wave height is stated as an exponential function of wave steepness, ratio of wavelength to breakwater-beam-size, breakwater porosity, and a drag coefficient. An empirical relationship for the peak mooring force was obtained.

Subject Headings: Wave measurement | Wave generation | Breakwaters | Curvature | Mooring | Wave forces | Breaking waves | Scale models

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