and for a saturated backfill 



P = I5ij^x_l69 (0^63^)2 



s 53UO pounds per lineal foot of wall 



each applied at a distance I1..88 feet above the base. 



3060 The thrust on the sheet pile due to the fill material is 

 similarly calculated with 



= US'" 



w m 120 pounds per cubic foot for unsaturated fill 



s 120 + 0,4 X 6I4.2 s lij.5.7 pounds per cubic foot for 

 satxirated fill 



307. Therefore for an unsaturated cell fill 

 P = 120 X 169 (o.uiU)^ 



a 1,730 pounds per lineal foot of wall 

 and for a saturated cell fill 



P - l^g°7 X 169 (o,l4a.U)2 



s 2110 pounds per lineal foot of wall 



308, Note 3 expecially for the cell fillj, that the maximum pressure 

 (not thrust) is given by 



P « wh, tan2 (2£.Z_-i) 

 2 



and occurrs at the cell bottom. For the case being considered with 

 a saturated cell fill.9 this pressure is 



p s U5o7 X 13 (G,UlU)2 



g. 32li po'onds per square foot 

 and with an unsaturated cell fill 

 p = 120 X 13 (O.Ull;)^ 



- 267 pounds per square foot 



151 



