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EPART SIXAppendix EAASHTO LRFD METHODOLOGY LEVEL SURCHARGE - 250 PSF13) Pullout ResistancePullout safety factors are determined on a level by level basis. The effective lengths and calculatedpullout is determined at each level and compared to a CDR > 1.0.q for maximum stress, bearing pressureL e =3.39'ZL e =4.45'3XTH=10'L e =5.52'L e =6.58'3XT3XTρ = 62˚L e =7.64'3XT1.08.0'B=9.0'Check each grid level for available pullout resistance against previously calculated tensile loads, a liveload surcharge is not considered as a resisting force:Pullout Resistance = (α)(EV r )(γH ov ) (2L e ) (Tan(φ)C i ) with H ov = average height of overburden and default scale effect correction factor α= 0.80L e = (L - Height ⁄ Tan ρ)Height Grid α EV r Hov γ L e Tan34 C i RFpo Pullout/Load CDR po5) 8.67' 3XT 0.8 1.00 1.33 120 3.39 .674 0.90 0.90 525 348 1.364) 6.67' 3XT 0.8 1.00 3.33 120 4.45 .674 0.90 0.90 1726 496 3.133) 4.67' 3XT 0.8 1.00 5.33 120 5.52 .674 0.90 0.90 3407 681 4.502) 2.67' 3XT 0.8 1.00 7.33 120 6.58 .674 0.90 0.90 5617 866 5.841) 0.67' 3XT 0.8 1.00 9.33 120 7.64 .674 0.90 0.90 8302 863 8.66OK - All capacity demands ratios are greater than 1.0E.8