CE 704 · Chapter 4
Hydropower Engineering past question
4.2.8 Embankment Dam Analysis-phreatic line and seepage analysis
The u/s and d/s slope of a homogeneous earthen dam with 12m toe drain are 2:1 and 3:1 (H:V) respectively. The water depth at u/s of dam is 50m. The dam has a crest width of 20m and free board of 5m. The coefficient of permeability of dam material is 2.5 cm/hr. Calculate (i) Specific discharge through the body of dam (ii) co-ordinate of phreatic line. [10]