. Proceedings of the annual convention . Unit Pressures ^4 = 143 psf %-- 511 P = R-Pf: 695 R = P-R . 920 Scale: \z 10 w=Unif weight of soil = 120 pcf c = Cohesion per unit of areo = 200 psf (Should usuolly be neglected) ^ 4 :Angle of internol friction of soil = 30«■ = Slope of backfillf =Direction of P *^-^fan(45%|-) = VECTORSAreo rwt. Sur- Tofol Wtchg. (Kips)0 WEDGEWedge Areo 1 X 1+*7= 2 2423|*577x5= | 23 8 25 3 3 38 5 4 45 3 6 5 COHESIONWedge Length VECTORSCohesion (Kips) 65 TRIAL
. Proceedings of the annual convention . Unit Pressures ^4 = 143 psf %-- 511 P = R-Pf: 695 R = P-R . 920 Scale: \z 10 w=Unif weight of soil = 120 pcf c = Cohesion per unit of areo = 200 psf (Should usuolly be neglected) ^ 4 :Angle of internol friction of soil = 30«■ = Slope of backfillf =Direction of P *^-^fan(45%|-) = VECTORSAreo rwt. Sur- Tofol Wtchg. (Kips)0 WEDGEWedge Areo 1 X 1+*7= 2 2423|*577x5= | 23 8 25 3 3 38 5 4 45 3 6 5 COHESIONWedge Length VECTORSCohesion (Kips) 65 TRIAL WEDGEEARTH PRESSURE METHODCOMPUTATIONS. Fig CHART I (V\/alls with large heels.) Masonry 811
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