Problem $2[14$ points$]$

Part $"$a: $q,$

$3$

Determine the maximum column load $($P$)$ that can be carried by the shown isolated footing considering the following bearing soil conditions $($take the weight of footing as $0\mathrm{.}1$ P $)$

$($ N N$)$

$1.)$ Sand: Measured SPT result at the middle of the effective zone is $3,7,8$ blows. No correction is needed and the allowable settlement is $5$ cm $.($Yee Meyerhof's Equation$).$

$2-$ Clay: Measured maximum Torque $(T_{\text{m}\text{a}\text{x}})=50$ N$.$m$,$ Vane dimensions: $H=130mm,D=65$ mm $.$ Based on the clay plasticity index, $($he correction factor $=0\mathrm{.}9($Use Skempton's Equation and F$.$S$.=3).$ Do not check settlement for this case..

Part $"$b$"$

For soil of case a$-1($i$.$e$.,$ sand$),$ is the footing safe to carry $P=500kN$ and M $($in the long direction$)=100kN.m?$ Support your answer by calculations.

olution: