we deduce 



cos a - sin a = ct oc - 1 = A /nc 



l +■ ct 2 a d-l 



from which, the last member being known, immediately we deduce 

 the batter ctoc that enables us to draw the theoretical profile, 

 in order to compare it in Figure 3 with that determined by 

 nature • 



Thus, we obtain for the batter of the upper. 50 ton* concrete 

 blocks: 



ctoc - 1 = 9.7 3 / 19 x 2. 



■yjl * ct^oc \7% V 50,00 



5 = 0.688 



000 " 



whence the batter ct oc = 3.51 



For the rock fill of artificial blocks situated below the 

 depth H = -5 meters, referred to the calm level, we obtain 



etc - 1 ■ 5.6 3/ 19 x 2.36 ' =0.397 



VI " ct^cc 1.36 V 50,000 



whence the batter is ctoc ■ 1.83. 



For the natural rock fill situated below H r = -11 ms 



ctoc - 1 _ g.jp 5 / l5 x 5.7 - 0.293 , 

 Vi " ct^a 1.7 V 4000 



whence the batter is eta =1.53. 



For that situated below H r = -14m: 



ctoc - 1 „ 1.70 3 / 15 x 2.7 ' * 0.343 

 Vl + ct*a 1 .7 V 1000 



or the batter is ct OC = 1.67. 



For the deep zone -Hj. 5 18 m, composed of the quarry waste 

 whose weight will vary from 1000 kilograms to a small minimum 

 weight, the weight of the stones obtained for the fixed batter. 

 ct a = 2, would be 



P = 15 x 1.15 3 x 2.7 = 143 kg, 

 * Metric ton, 1000 kg = 2205 lbs. 



15 



