$($c$)$ Using the siven CPT log$,$ classify the soils using Robertson and Campanella's correlation $($fits $2\mathrm{.}71)$ and stite if the wil types given in the soil profile agree with your findings. $(10\%)$

$q_4=q_1-q_2$

$($a$)$ Determine the elastic settlement expected to occur within a time span of $20$ years using Schmertmann's Strain$-$Infuence$-$Factor Method. $(20\%)$

$($b$)$ Determine the average consolidation settlement at mid$-$clay beneath the center of the foundation. Hint First find the pre$-$consolidation pressure $({}^{\text{'}})$ at mid$-$clay $($average value$)$ using Mayne and Kemper $($I$988)$ approach and state if the clay is NC or OC$.(20\%)$

$($c$)$ Is the selected footing size safe in bearing capacity? Use the angle of internal friction found in Problem $1($SPT based$).$ If could not be found, you may use $30.$ Apply the General Bearing Capacity Method. Can Terzaghi's approach be used for this case? $(20\%)$