b) Curved section (Figs. 7 & 8)

This consists of determining the curves of the canal. The criterion is to

obtain a smooth and symmetrical curve so that the water flows as

smoothly as it does in the straight section.

Steps:

1. Take a distance L“ ” from the PI towards the left and the right,

determining points a and b.

Fig. 7

2. Determine points c, d, e, placing a taught rope between a and b.

Then take distance m“ ” perpendicular to the PI with the rope. Points

c, d, e are then located at:

1 (m)

D = m/2 c = e = 4 (2)

Fig. 8

8