DESIGN OF CANAL USING LACEY METHOD
LACEY’S SILT FACTOR,f
=\LARGE1.76\sqrt(d_{mm})FLOW VELOCITY,v
=\LARGE(\frac{Qf^2}{140})^\frac{1}{6}HYDRAULIC RADIUS,R
=\LARGE\frac{5v^2}{2f}WETTED PERIMETER,P
=\LARGE4.75\sqrt(Q)
BED SLOPE
=\LARGE\frac{f^\frac{5}{3}}{3340Q^\frac{1}{6}}