STUPIDSID
1 (a)
Explain the different storage zones of reservoir with the help of diagrams.
5 M
1 (b)
Briefly explain the procedure for determine the storage capacity and yield of a reservoir using mass curve.
10 M
2 (a)
Explain the different types of force acting on a gravity dam.
7 M
2 (b)
Briefly explain elementary profile of a gravity dam.
8 M
3 (a)
Explain the design criteria for earthen dam.
7 M
3 (b)
Explain the causes for failure of earthen dam.
8 M
4
Design a surplus weir with stepped apron of a tank forming part of a chain of tanks with the following details.
Draw to a suitable scale.
a) Half plant at top and half plan at foundation.
b) Half elevation and half sectional elevation.
c) Cross section across the weir.
| Combined catchment area | = 24.5 km2 |
| Intercepted catchment area | = 20.4 km2 |
| Maximum water level | = +123.75 |
| Full tank level | = +123.00 |
| Ground level @ proposed side | = +122.00 |
| Ground level below proposed weir upto a reach of 5m (Fall) | = +121.00 |
| Tank bund level (TBL) | = +125.50 |
| Tank bund of tank bund | = 2.0m |
| Side slope of bund on either side | = 2.1 |
| Level of hard strata | = +120.50 |
| Ryve's coefficient for combined catchment | = 9 |
| Ryve's coefficient for intercepted catchment | = 1.6 |
| Take hydraulic gradient | = 1.5 |
Draw to a suitable scale.
a) Half plant at top and half plan at foundation.
b) Half elevation and half sectional elevation.
c) Cross section across the weir.
70 M
5
Design a canal drop of 2m with following data:
[ egin {align*} Side slopes =& 1:1 (cutting) \ & 1 dfrac {1}{2}:1 (filling) end{align*} ] Half supply depth = 1m
Ground level at site = 1m
Good soil available for foundation = +19.50.
Draw
a) Half plan at foundation and half plan at top.
b) Longitudinal section
c) Cross section showing half elevation and half section.
| Particular | U/S canal | D/S canal |
| Full supply discharge | 4 cumecs | 4 cumecs |
| Bed width | 6m | 6m |
| Bed level | +21.00 | +19.00 |
| Full supply depth | 1.5m | 1.5m |
| Full Simply Level (FSL) | +22.50 | +20.50 |
| Top width of bank | 2m | 2m |
| Top Bank Level (TBL) | +23.50 | +21.50 |
[ egin {align*} Side slopes =& 1:1 (cutting) \ & 1 dfrac {1}{2}:1 (filling) end{align*} ] Half supply depth = 1m
Ground level at site = 1m
Good soil available for foundation = +19.50.
Draw
a) Half plan at foundation and half plan at top.
b) Longitudinal section
c) Cross section showing half elevation and half section.
70 M
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