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Project Name: THOMAS PIT <br />Date: 01!19/02 By: GL <br />Description: EMBANKMENT ARMORING FOR 100YR EVENT <br />TEST 1 <br />INPUT D= <br />INPUT Y= <br />INPUT S= <br />T= <br />T= <br />N= Stability <br />Parameter <br />INPUT Dsa= <br />SG= <br />from above N= <br />RIPRAP STREAMBED LINING CSU PROCEDURE <br />12 Depth of flow feet <br />62.4 Density of water Ib/cu.ft. <br />0.00734 slope of channel %!100 <br />Tractive force Ib/cu.ft. <br />5.496192 =(D*Y•S) <br />= 21T no units <br />Y(SG-1)Dso for turbulent flow <br />3.75 Average diameter of riprap in feet <br />2.65, Specffic Gravity of the material used <br />0.298938 <br />INPUT 0= 43 Angle of repose of material Degrees <br />INPUT Z= 0.41997 Bedslope angle Degrees <br /> SF(BOTTOM) = 3.259382 cos(Z)*tan(O) SAFETY FACTOR <br /> sin(O)+N*tan(O) <br /> BOTTOM MATERIAL IS STABLE <br /> TEST 2 RIPRAP BANK LINING <br />INPUT A= 0.41997 Angle of streamline (bed) assuming unfform flow <br /> (same as bedslope angle Z) DEGREES <br />INPUT SS= 26.5 Sideslope angle <br /> B= 17.30994 tan's (cos(A)/(2*sin(A)M*tan(O)+sin(A)) <br /> 0.311656 <br /> N'= 0.194987 N' (1+SIN(A+B)/2) BANK STABILITY PARAMETEF <br /> SF(BANK)= 1.484823 cos(A) * tan(O) 0.93249 <br /> N"tan(O) + sin(SS)"cos(B) 0.628014 <br /> BANK MATERIAL IS STABLE <br />Thomas Pit 2102 18 <br />