Question: A 3.75 m clay layer in the field (drained on one side) is normally consolidated. When the pressure is increased from 50 kN / m2

A 3.75 m clay layer in the field (drained on one side) is normally consolidated. When the pressure is increased from 50 kN / m2 to 150 kN / m2, the void ratio decreases from 0.9 to 0.75. The hydraulic conductivity, k, of the clay for the above loading range was found to be 6 x 10-7 cm/sec
a. How long (in days) will it take for the clay layer to reach 50% consolidation?
b. What is the settlement at that time (that is, at 50% consolidation)?

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