For a drilled shaft $($single deep foundation$)$ it was estimated during the geotechnical

design that P$\text{'}$p $=600kN$ and $Ps=2,400kN.$ For this deep foundation, the total length is

$16m,$ the diameter is $0\mathrm{.}80m,$ and the factor of safety is $2\mathrm{.}50.$ Compute the elastic

settlement under allowable working load. Use the following values:

$f^{\text{'}}C=40$MPa,$Es=35,000$kPa,$v=0\mathrm{.}25,=0\mathrm{.}55.$