gamma sat $=20$ kN$/$m$^3.$ If soil is normally consolidated, then find the settlement of pile group if $500$ kN load is applied on the group. Dia of each pile $0\mathrm{.}2$ m$,$ c$/$c spacing$=0\mathrm{.}5$ m and length of each pile $=5$ m and depth of hard stratum from ground level is $7$ m$.$ The void ratio of the clay is $1\mathrm{.}05$ and coefficient of compression C$\_\{0\}=0\mathrm{.}027.$ Assume water table at ground level.