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Redi-Rock Wall -Preliminary Calculation I <br /> JWB <br /> Numb( Height Overturning Slip <br /> of <br /> block <br /> Ifti 1%] <br /> 1 0.00 79.94 86.74 <br /> 2 1.50 66.53 41.70 <br /> 3 300 83,76 29.13 <br /> 4 4.50 64.99 21.50 <br /> 5 6.00 47.95 15.03 <br /> 6 1 50 32.92 9,73 <br /> 7 9 00 20.23 5.60 <br /> 8 10 50 10.22 3.42 <br /> 9 12,00 4.42 1.53 <br /> Block with max.utilization No. 1 <br /> Check for overturning stability: <br /> Resisting moment Mres = 26012.8 lbfft/ft <br /> Overturning moment Mow = 13863.8 lbfft/ft <br /> Safety factor= 1.88> 1 50 <br /> Joint for overturning stability is SATISFACTORY <br /> Check for slip: <br /> Resisting horizontal force H 5310.0 lbfIft <br /> Active horiz.force Hapt = 3070.6 lbf/ft <br /> Safety factor= 1.13> 1.50 <br /> Joint for verification Is SATISFACTORY <br /> Verification of bearing capacity of soil: <br /> Maximum stress = 3363,5 psf <br /> Bearing capacity of footing material Rd = 15000.0 psf <br /> Safety factor=4.46> 2.00 <br /> Footing bearing capacity is SATISFACTORY <br /> Slope stabilty analysis <br /> Results (Stage of construction 1) <br /> Analysis 1 <br /> Circular sli. surface <br /> Slip surface oarameters <br /> [tti (11 = -35,64 [') <br /> Center Angles <br /> 0.57 ifti rz2= 87,96 <br /> Radius R = 16.08 Iftj <br /> L <br /> The slip surface after optimization. <br /> Slope stability verification (Bishop) <br /> Sum of active forces Fa - 8955.6 11)1/ft <br /> Sum of passive forces Fp= 13146,6 1W/ft <br /> Sliding moment Ma= 144048.0 Ibfft/ft <br /> Resisting moment . M = 211454.3 lbfftift <br /> Factor of safety=1.47> 1.30 <br /> Slope stability SATISFACTORY <br /> , , <br /> 6 <br /> R W& (,:twalon 5 7'15 1)I CW040111'4 FE L 200'8 Ifrer <br />