An earthen dam is constructed on impermeable foundation, The coefficient of permeabilities of soil in horizontal and vertical direction are 5.2 × 10-8 m/s and 1.2 × 10-8 m/s. The water level on the reservoir side is 10 m from the base of the dam and number of flow channels is 4. The quantity of seepage per unit length in m3/s can be found using which of the following formulas?
1
\(Q=H.\frac{N_f}{KN_d} \)
2
\(Q=k.3H.\frac{N_d}{N_{df}} \)
3
\(Q=k.H.\frac{N_f}{N_{d}} \)
4
\(Q=k.\frac{N_f}{HN_{d}} \)