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Job No. 123116-D00 Page 8 <br /> Client RMR Aggregates,Inc. Date 11/27/2023 <br /> Project Mid Continent Mine Designed By KRF <br /> Subject Active Slope Stabilization Checked By BZ <br /> Total resisting force,Wyllie&Mah: <br /> F -= c-A+ T s n +� }} + F —F tau( ) =8.88•klf <br /> nn�&: max fp st narm.exis «ater jt <br /> Total driving force,Wyllie&Mah: Ld6mju@�' Fdr.exis—Tmax cos(afp + -Ost)=6.84-ktf <br /> F <br /> Factor of safe S•= res =1-3 <br /> Fdri-ting <br /> Pattern vertical spacing: VV 5•ft <br /> MINJV <br /> Pattern Horizontal spacing: 30-ft <br /> �'_ <br /> Required resisting force per anchor column T := TmaxHsp = 183-ki <br /> Number of anchors in column: n:= 1 <br /> AM <br /> T <br /> Required resisting force per anchor T req = 183•ki <br /> recLan seis ' n <br /> Tieback Anchor <br /> Multi strand anchors.class 1 <br /> Bond strength in borer Limestone layer: SSA:= 150•psi <br /> Factor of safety-pullout: F = 1.5 Seismic <br /> Anchor inclination from perpen dicular to slope: Est=45•de2 <br /> 234 kip 4 strand <br /> Strand ultimate strength: <br />