$7-$ A $12\mathrm{.}75$ inch diameter steel pipe pile is driven into a saturated medium clay with s$\_($u$)=$

$9001($b$)/($f$)$t$^(2)$ and $\backslash$gamma $^(\text{'})=801($l$)/($f$)$t$^(3).$ This pile is embedded to a depth great enough to be considered a long

pile. Using a spreadsheet, develop a family of p$-$y curves at depths of $5,10,15,$ and $20$ ft using

Matlock. Plot all four curves on the same diagram.