and the total overturning moment would be 



^,^ ^ |d 



(d 



H 



(78) 



-1222 X 5 -^ 1530 (6,9) 

 3 



= 6110 + 3520 



3 9.6'HO foot pounds per lineal foot of wall. 



3'^3' Tabulatio n_of__De sign Wave Fo rces and Moments . - The forces 

 and moments exerted on the wall by the deep water design wave breaking 

 in 808 feet of i.oater are greater than those exertt-d by some lesser height 

 of wave breaking right on the structure. These larger forces will be 

 u-sed for design. 



TABLE 29 - Wave Forces and Momento 



Dynamic 

 Static 



TO TAX. 



760 

 _3390_ 



I1I5O 



^800 



11^600_ 



17.100 



(79) 



30U» Earth Forces. = The backfill thrust is given by 



P = ^ ^^'^ (22_^"^ 

 2 2 



where h - 13 feet s d height of backfill above low water datum 



w « 130 pounds per cubic foot s the unit weight of 



unsaturated fill 



■2 130 + 0,U X 6i|.2 a 155 = 7 pounds per cubic foot = the unit 



weight of saturated fill 

 The point of application of this thrust is at a distanice 0,375h above 

 the cell base, 



305 o Therefore J, for an uns a turate d b 3 c kf ill 



P ' JJI^J:^ (0.637)^ 



■s ij.U60 pounds per lineal foot of wall 

 150 



