Civil Engineering > GATE 2020 SET-1 > Geotechnical Engineering
A 10 m thick clay layer is resting over a 3 m thick sand layer and is submerged. A fill of 2 m thick sand with unit weight of 20 kN/m3 is placed above the clay layer to accelerate the rate of consolidation of the clay layer.
Coefficient of consolidation of clay is 9 ร 10-2 m2/year and coefficient of volume compressibility of clay is 2.2 ร 10-4 m2/kN. 2 Assume Taylor's relation between time factor and average degree of consolidation. 
The settlement (in mm, round off to two decimal places) of the clay layer, 10 years after the construction of the fill, is _______.
Correct : 18.40 to 19.50
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