. Proceedings of the annual convention . T 500 psf i-UO-U-Li- Kl 15I I I Tension crock M_J I r7 //^ •. h = / /// / BScole: l=IO w = Unit weight of soil = 120 pcf c = Cohesion per unit of oreo= 200 psf (Should usually be neglected)* = Angle of internol friction of soils 30*S =Slope of backfillf= Direction of P=^^=20» h,= %^ ton (45*+!)= WedgeI 23456 WEDGE VECTORSAreo E E Sur- TotolWt Areo Wf. chg (Kips) ^|2.+ 6fl8*516^4g^gg, gg, g^ q 82 ^4^ + 41,9 + XI + = I 36j8 0 =687 2055 247 0 2949 = 3 843 462
. Proceedings of the annual convention . T 500 psf i-UO-U-Li- Kl 15I I I Tension crock M_J I r7 //^ •. h = / /// / BScole: l=IO w = Unit weight of soil = 120 pcf c = Cohesion per unit of oreo= 200 psf (Should usually be neglected)* = Angle of internol friction of soils 30*S =Slope of backfillf= Direction of P=^^=20» h,= %^ ton (45*+!)= WedgeI 23456 WEDGE VECTORSAreo E E Sur- TotolWt Areo Wf. chg (Kips) ^|2.+ 6fl8*516^4g^gg, gg, g^ q 82 ^4^ + 41,9 + XI + = I 36j8 0 =687 2055 247 0 2949 = 3 843 462 ^ 569 COHESION VECTORS ;dge Length Cohesion (Kips) 1 2 3 4 5 6 TRIAL WEDGE METHODEARTH PRESSURE COMPUTATIONSFIG. 3- CHART 2 (Wolls with smoll heels). I Scole: I -10 812 Masonry Appendix CEARTH PRESSURE CHARTS FOR WALLS LESS THAN 20 FT HIGH Figs. 4 and 5 may be used for estimating the backfill pressure if the backfill materialhas been classified in accordance with Sec. B, Art. 4.
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