corresponds to most of the seaward slope and crest of the structure as shown in Figures 

 5.8 and 5.9. 



16 -1 



14 - 



£'12 - 



O) 



§10 - 

 ■g 8- 



"D 

 O 



u] 6 - 



c 



0) 4 - 



2 - 



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 Q 





























• 



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U.V 



i«^' 























^s< 





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•^I 



,^ 

























f J 



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*v 

























"^ 



V 

























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2 4 6 8 10 12 

 Mean Damage, S 



14 



• Series A" » Series B' ▼ Series C Eq. 6.4 









1 



Figure 6.4. Prediction of mean eroded length as a function of mean damage for Series 

 A', 5', and C 



Finally, the normalized minimum cover depth C is analyzed to examine the 

 decrease of protection with damage progression. The measured values of C and €±0^ 

 were plotted as a function of cumulative number of waves in Figures 5.14, 5.20, and 

 5.21 for Series A', B', and C, respectively. These relations are similar to the 

 corresponding results for damage and eroded depth except that C decreases with A'^,^. and 

 Oc is positive at A^„ = 0. The initial values of C at A^„, = were Q =1.65, 1.52, and 1.38 

 for Series A', B\ and C, respectively, and the initial value of a^ at A'^,,. = was 0^0 = 

 0. 14, 0. 17, and 0.22 for Series A',B', and C, respectively. To account for the 



114 



