Qultimate $=1115kN$

$L=16\mathrm{.}5ft=5\mathrm{.}63m$

$QU=115k\frac{N}{m^3}$

$=20k\frac{N}{m^3}$

$F\mathrm{.}0\mathrm{.}5=2\mathrm{.}5$

$NC=9$

$=\mathrm{.}45$

$1115$

Number of greup plles?

Diameter of Piles?

Design a deep foundation group pile that can support the given load with the length given. Thank you