Locate the Phreatic line for an earth dam having following data: Deep…

Previous year question for Design of Hydraulic Structures.

Question

Locate the Phreatic line for an earth dam having following data:

Deepest level of river bed = 80 m

H.F.L of the reservoir = 97.5 m

Level of top of the dam = 100 m

top width of the dam = 4.5 m

Slope of upstream face = 1 in 3

Slope of downstream face = 1 in 2

Coefficient of permeability of dam material = 5.0 x 10⁻⁶ m/s