2730 W MARINE VIEW DR 2025-09-03

SO I,; ERRA' WALL SYSTEM PULLOUT CALCULATIONS Pullout is the amount of resistance of the reinforcing has to a pullout failure based on the Tmax applied and the depth of embedment(resistance). In an NCMA design the failure place is defined as the Coulomb failure plane which varies with face batter, backslope angle, and surcharge loads applied. All failure planes begin at the tail. of the facing units. For AASHTO calculations, the live load surcharge is not included in the Tmax value for pullout. Failure Plane Angle(p) = 57.0 Deg NOTE: The pullout capacity is limited by the Ultimate Strength of the reinforcing layer, not the ultimate pullout capacity calculated. F*= 0.67 x tan((p) = 0.67 x 0.67= 0.45 Le= embedment length = Li-block depth-hi *Tan(90-p) La= Li-Le sv=geogrid spacing Rc= % coverage a=scale effect correction Pullout=2 x Le x F*x sv x a x Rc TABLE OF RESULTS Elev[ft] Rc% Tmax[ppf] Ttotal[ppi] Le[ft] La[ft] I TRpo[ppf] TRpos[ppf] FS PO FS SeisPO 26.00 100 .._ 120 0 ; 10.21 17.79 2974 2974 24.70 24.00 100 214 _ 0 11.42 16.58 6655 6655 31.10 22.00 ' 100 321 0 12.64 15.36 11045 11045 34.41 20.00 100 412 0 13.85 14.15 16143 16143 39.20 18.00 [ 100 527 0 15.07 12.93 21949 21949 41.63 16.00 ' 100 637 0 16.28 11.72 28463 28463 44.65 co 14.00 i 100 744 0 17.50 10.50 35685 35685 47.99 0. 12.00 100 854 0 18.71 9.29 43615 43615 51.07 00 10.00 100 961 0 19.93 8.07 52253 52253 54.39 8.00 100 1068 0 21.14 6.86 61599 61599 57.70 6.00 100 1174 0 22.36 5.64 71654 71654 61.02 4.00 100 1284 0 23.57 4.43 82416 82416 64.18 2.00 100 1391 0 24.79 3.21 93887 93887 67.49 - Note: Calculations and quantities are for PRELIMINARY ANALYTICAL USE ONLY and MUST NOT be used for final n or construction without the independent review,verification, and approval by a qualified professional engineer. UltraWall 5.0.19183 14