Prototype Scale Mooring Load and Transmission Tests for a Floating Tire Breakwater.
COASTAL ENGINEERING RESEARCH CENTER FORT BELVOIR VA
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Prototype scale tests of the mooring load and wave transmission characteristics of a floating tire breakwater were conducted in the large wave tank at the Coastal Engineering Research Center. Standard Goodyear Tire and Rubber Co. 18-tire modules connected to form breakwaters, 4 and 6 modules 8.5 and 12.8 meters, 28 and 42 feet wide in the direction of wave advance, were tested in water depths of 2 and 4 meters 6.56 and 13.12 feet. Monochromatic waves with a 2.64- to 8.25-second period range and heights up to 1.4 meters 4.6 feet were used in the tests. Test results indicate that wave transmission is mainly a function of the breakwater width to incident wavelength ratio with a slight dependence on the incident wave height. However, the mooring forces are mainly a function of the incident wave height with only a slight dependence on the incident wavelength and breakwater width. Recommended design curves for the wave transmission coefficient versus breakwater width to wavelength ratio and mooring load as a function of incident wave height are presented. Author
- Civil Engineering