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. <br /> KEYSTONE RETAINING WALL DESIGN <br /> Based on Rankine(modified)Methodology <br /> �����, 3.1.5 <br /> Project:Walker Residence Date: 5/23/2003 <br /> Proj.No.:03-200 By:MRJ <br /> Design Parameters <br /> Soil Parameters � c psf 'L�cf <br /> Reinforced Fill: 26 0 120 <br /> Retained Fill: 26 0 120 <br /> Foundation Fill: 26 0 120 2 <br /> Reinforce Fill Type: Silts&sands <br /> Unit Fill: Crushed Stone, 1 inch minus 1 <br /> Factors of Safety <br /> Sliding: 1.50 Overtuming: 2.00 Bearing: 2.00 <br /> Pullout: 1.50 Uncertainties: 1.50 <br /> Connecrion Peak: 1.50 Serviceability: N/A <br /> Base Friction used in Tension of base grid <br /> Reinforcing Parameters:Mirafi XTc Geogrids <br /> Tult RFcr RFd RFid LTDS FS Tal Ci Cds <br /> 03XTc 3001 1.67 1.10 1.05 1556 1.50 1037 0.95 0.90 <br /> Analysis: Critical Wall Section Case: Case 1 <br /> Unit Type: Standard 18" Wall Batter:0.00 deg. (Hinge Ht N/A) <br /> Leveling Pad: Crushed Stone <br /> Wall Ht: 7.00 ft embedment: 1.00 ft <br /> Level Backfill <br /> Surcharge:LL-- 0 psf uniform surcharge DL--0 psf uniform surcharge <br /> Offset= 1.00 ft; Load Width= 100.00 ft <br /> Results: SL•ding Overturnin� Bearing Shear Bendin� <br /> Factors of Safety: 2.32 6.62 5.63 9.92 3.18 <br /> Calculated Bearing Pressure: 989 psf <br /> Eccentricity at base: 0.49 ft Allow. Peak Serviceablity <br /> Reinforcing: (ft&lbs/ft) Calculated Tension Connection Connection Pullout <br /> Laper Height Length Tension Reinf.Tvne Tal Tcl Tsc FS <br /> 2 4.67 6.5 315 03XTc 1037 OK 1060 OK N/A 1.72 ok <br /> 1 2.00 6.5 528 03XTc 1037 OK 1099 OK N/A 3.95 ok <br /> Reinforcing Quantities(no waste included): (%of Rein. Strength Used= 55%) <br /> 03XTc: 1.44 sy/ft <br /> Pref:Embed./Base F./ - 1 - MRJENGINEERING <br /> page of <br />