A sheet pile has an embankment depth of 12 m in a homogeneous soil stratum. The coefficient of permeability of soil is $10^{- 6} m / s$ . Difference in the water levels between the two sides of the sheet pile is 4m. The flow net is constructed with five number of flow lines and eleven number of equipotential lines. The quantity of seepage (in $c m^{3} / s$ per m. up to one decimal place) under the sheet pile is
1.6

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Solution

The correct option is A 1.6

$N_{f} = 5 - 1 = 4$

$N_{d} = 11 - 1 = 10$

$Q = \frac{k H N_{f}}{N_{D}}$

$= 10^{- 6} m / s \times 4 m \times \frac{4}{10} p e r m e t e r w i d t h$

$= 1.6 \times 10^{- 6} m^{3} / s / m w i d t h$

$= 1.6 c m^{3} / s / m e t e r w i d t h$

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The correct option is A 1.6 Nf=5−1=4 Nd=11−1=10 Q=kHNfND =10−6m/s×4m×410 per meter width =1.6×10−6m3/s/m width =1.6 cm3/s/meterwidth

The correct option is A 1.6

$N_{f} = 5 - 1 = 4$

$N_{d} = 11 - 1 = 10$

$Q = \frac{k H N_{f}}{N_{D}}$

$= 10^{- 6} m / s \times 4 m \times \frac{4}{10} p e r m e t e r w i d t h$

$= 1.6 \times 10^{- 6} m^{3} / s / m w i d t h$

$= 1.6 c m^{3} / s / m e t e r w i d t h$