Laserfiche WebLink
r <br />Channel Bank Stability <br />Safety Factor <br />Dsu = 1.0, n = .0395 <br />8 = 6.16 d = .38 <br />T max = (0.76)(62.4)(.38)(.108) = 1.946 <br />n = 21(T maxi = 21(1.9461 <br />(v) (SG-1) (DSO) 62.4(1.65) (1) <br />n = .397 <br />Assuming uniform flow, the streamlines are parallel to the channel <br />bottom on L = A = 6.160 <br />also for 3:1 side Slope a = tan"~ (1/3) <br />= 18.43 <br />B = tan"~ cos L <br />2 sin L + Sin a <br />N tan L <br />B = tan- I .9942 <br />L 2 (.3161 t .316 <br />.357 <br />B = 25.48 <br />n~ = n ~1 = sin (L + B)~ <br />2 <br />n~ _ .397 r(1 + sin (6.16+25.48 1 <br />L 2 <br />n~ _ .326 <br />S.F. = Cos a tan m <br />n tan ~ + sin a Cos B <br />S.F. _ (cos 18.431 (tan 42) <br />.326(tan42)+(sin 18.43)(Cos 25.08) <br />S.F. _ (.9491(.91 <br />.293+(.316)(.903) <br />S.F. = 1.47 OK <br />Construct the Channel 12' wide at bottom by 1 foot deep with 3h:ly <br />side slopes. <br />