Ouestion $5$:

A rectangular footing and $L=1\mathrm{.}5m$ is located at a depth of $0\mathrm{.}8m(D_f)$ in sand as shown in

the following figure. The eccentricity $e=0\mathrm{.}1m$ is in the direction of width. The ground water table is at

a great depth below the ground surface. Determine the gross allowable eccentrical load $Q_{\text{a}\text{l}\text{l}}$ for the

factor of safety of $3,$ based on Meyerhof's effective area method $(1963)$ for estimating the ultimate

bearing capacity:

$q_u^{\text{'}}=c^{\text{'}}{N}_c{F}_{cs}{F}_{cd}{F}_{ci}+q{N}_q{F}_{qs}{F}_{qd}{F}_{qi}+\frac{1}{2}{}_b{B}^{\text{'}}{N}_{}{F}_s{F}_d{F}_i$