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L.G. Everist, Inc. Bank Armoring Plan (cont) <br /> Ragsdale Reservoirs Safety Factor Calculations <br /> M-2020-077 <br /> SF = cos 6 tan 0 21 rs <br /> n tan 0+sin.e Ts YRS M (s,—I)yp,, <br /> 0 = face slope of pitside bank, in degrees to the horizontal <br /> 0 = angle of repose of pitside batik construction materials in degrees <br /> stability factor <br /> s, = specific mivity of riprap particles <br /> = specific weight of Avater=62.4 lbsV <br /> Ao = median riprap particle size,in feet <br /> R = hydraulic radius at normal depth of flora down pitside slope,in feet <br /> S = face slope of pitside bank. in feet per foot <br /> T, = -yRS <br /> Y= 62.4 <br /> R = 2 <br /> S = 0.01 <br /> Irs= 1.248 <br /> 21Ts <br /> (Ss-1)y,D50 <br /> s = 1.248 <br /> SS = 2.4 26.2 <br /> D50 1 n 87.4 n 0.3 <br /> SF Cos 0 tail 0 <br /> 11 tail,0 +sill 0 <br /> n = 0.3 <br /> cosO = 0.9487 0.6643 <br /> 0 = 18.430 tano = 0.7002 SF = <br /> 0 = 350 sinO = 0.3161 0.5262 1.261 <br />