Problem $12\mathrm{.}14$ Part $($b$)$

The compression index $Cc=$

$($Express your answer with two decimal places$)$

The primary consolidation settlement $Sc=$

ft

$($Express your answer with three decimal places$)$

The settlement at $60\%$ consolidation, $Sc(t)=$

ft

$($Express your answer with three decimal places; unit: $ft)$

$12\mathrm{.}14$ For a normally consolidated clay, the following are given.

${}_o^{\text{'}}=2$ ton $\frac{?}{f{t}^2},e=e_o=1\mathrm{.}21$

${}_o^{\text{'}}+{}^{\text{'}}=4to\frac{n}{f}{t}^2,e=0\mathrm{.}96$

The hydraulic conductivity $k$ of the clay for the preceding loading range is

$1\mathrm{.}8{10}^{-4}f\frac{t}{d}ay.$

a$.$ How long $($in days$)$ will it take for a $9ft$ thick clay layer $($drained on one side$)$ in

the field to reach $60\%$ consolidation?

b$.$ What is the settlement at that time $($that is$,$ at $60\%$ consolidation$)?$