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UPPCL JE CE 2015 Offical Paper

- 3 × 10
^{-7}m/s - 6 × 10-7 m/s
- 12 × 10-7 m/s
- 18 × 10-7 m/s

Option 4 : 18 × 10-7 m/s

Free

ST 22: Geotechnical Engineering

1581

20 Questions
20 Marks
15 Mins

Given,

Discharge velocity (V) = 6 × 10^{-7} m/s

Void ratio = 0.5

**Then porosity (n)**

\(n = \frac e {1 + e}\)

\(n = \frac {0.5} {1 + 0.5} = \frac {0.5}{1.5} = \frac 1 3\)

seepage velocity (V_{s}) = ?

seepage velocity V_{s} \(= \frac V n = \frac {6 × 10^{-7}}{1 / 3}\)

V_{s} = 18 × 10^{-7} m/s

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