ABSTRACT
For the determination of D, taking moments of all the forces about the base of the wall, we have
P (D -) - D2 (- -') h h 0aX +y -PXT+ p+p X"2 X3=
D 2 h2 or 30(D+0.63)- 38x-+ (38+ 242)x-=0
2 6 Substituting for h we have,
Simplifying, we have
D 2 - 1.57D + 1.35 =0 Solving D = 2.2 m; Increasing D by 40%, we have D = 1.4(2.2) = 3.1 m.
