Q$2(30$ Pts$).$ A $25-$storey apartment block with a basement is to be constructed on a raft

foundation which will rest at $10m$ depth from the ground surface and has $3040m$ dimensions.

The ground water level is also at $10m$ depth. The gross foundation pressure is $350$kPa. The

soil profile consists of $30m$ deep loose to medium dense sand

$\{$:$k\frac{N}{m^3}),$ which is underlaid by a deep sandstone layer $({}_{\text{s}\text{a}\text{t}}=22k\frac{N}{m^3}).$ The standard

penetration blow numbers obtained are presented below:

Estimate the expected settlement for the short term $(3$ years$)$ and long term $(30$ years$)$

using Burland$-$Burbidge method.