Question: A 2 0 - ft thick clay layer is subjected to a load of 1 2 5 0 lb / ft 2 . One year

20 -

ft thick clay layer is subjected to a load of

1250

/

2 .

One year after loading, theaverage consolidation is

50 %

complete. What is the coefficient of consolidation if the clay layer drainsvertically in both directions? If the coefficient of permeability of the clay is

0.1

/

year

,

what is the rate offlow of water per unit area of the surface of the clay at this time? How much settlement has taken place atthe end of one year?

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