Consider a pipe pile $($flat driving point$-$see Figure $11\mathrm{.}2$d$)$ having an outside diameter of $457$ mm $.$ The embedded length of the pile in layered saturated clay is $20$ m $.$ The following are the details of the subsoil:

$\backslash$table$[[\backslash$table$[[$Depth from$],[$ground surface$],[(m)$