approximately with the square of the wave height; more specifically, F <* H n 

 where n = 1.5, 2 and 2 for the PT-1, PT-2, and Goodyear breakwaters, respec- 

 tively. For design purposes, and until the results from ongoing experiments 

 become available, it is suggested that the following formula be used to cal- 

 culate anchor requirements for breakwaters that range in width from 9 to 15 

 meters: 



F = 100(1 + 10 KH n ) (6) 



where 



H = wave height (meters) 



F = restraining force (kilograms per meter) to be provided by the 

 anchor system for each meter of breakwater length 



n = 3/2 for the PT-1 breakwater or 2 for the PT-2 and Goodyear 

 breakwaters 



K = force coefficient from Table 4. 



The available small-scale and prototype-scale data have recently been 

 synthesized into detailed design curves (Harms, Bishop, and Westerink, 

 1981). In order to be conservative, mooring loads should be determined from 

 these design curves as well as equation (6) , and the larger value chosen for 

 design purposes. 



52 



