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03000CE302052001

Canal:

Full supply discharge = 42 cumecs

Full supply level = 192.7 m

Canal bed level = 191.0 m

Canal bed width =26 m

Trapezoidal canal section with 1.5 H: 1 V slopes

Canal water depth = 1.7 m.

Drainage:

High flood discharge = 340 cumecs.

High flood level = 189.0 m

High flood depth = 2.7 m.

General ground level = 191.5 m.

Prepare the following drawings (not to scale)

i) Half plan at top and half at foundation level.

ii) Section through the centre line of the drain.

Design a Sarda Type fall with drop of 1.4 m for a canal carrying a discharge of

35 cumecs with the following data:

Bed level upstream = 104 m

Bed level downstream = 102.6 m

Side slopes of channel = 1:1

Full supply level upstream = 105.6 m

Bed width u/s and d/s = 27 m

Safe exit gradient = 1/5

Prepare the following drawings (not to scale)

i) Half plan at top and half at the foundation level.

ii) Section through the centre line of the canal.
PART C

Answer any two full questions, each carries 10 marks.

Explain chute spillway and side channel spillway.

List the forces acting in a gravity dam.

What is a stilling basin? Explain Type I and Type II stilling basins.

What are the functions of gallery in a gravity dam?

With the help of a neat sketch, derive the expression for thickness of arch ring at

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