**Example 1:** Determine the following:
(a) Equivalent coefficient of vertical permeability of the three layers
(b) The rate of flow per m^{2} of plan area
(c) The total head loss in the three layers
**Solution:**
**(a) ** = = 1.33 x 10^{-3 }cm/s
**(b)** Considering an area A = 1 m^{2} =1 x 10^{4 }cm^{2}
q = k.i.A = = 7 x 10^{-4} x 0.25/2 x (1x10^{4}) = 0.875 cm^{3}/s per m^{2} of plan area
**(c)** For continuity of flow, velocity is the same.
, where = total head loss in three layers
. = = = 1.184 m |