A square footing with dimensions $2\mathrm{.}25$m by $2\mathrm{.}25$ m is found on a sandy soil at a depth of D$=1\mathrm{.}5$m$.$The soil has a dry unit weigh $=18\mathrm{.}4$ and a saturated unit weigh ysat$=20\mathrm{.}4$The soil is cohesion less and the friction angle equals $=38.$ Using the Meyerhof $(1963)$ methodology

calculate its: i$)$ ultimate bearing capacity and; ii$)$ net bearing capacity for three different water table

positions:

a$)$ water table at a depth of dw$=10\mathrm{.}0$m;

b$)$ water table at a depth of dw$=1\mathrm{.}5$m; c$)$ water table at the soil surface $($dw$=0\mathrm{.}0$m$).$