A square footing is to be constructed at a depth of $4$ m below ground surface on a Sandy

Clay soil for which cohesion is $500$ g$/$cm$2$

and the bulk density is $1\mathrm{.}68$ g$/$cm$3$

$.$ The total load

applied to the soil is $425$ ton uniformly distributed. Find out the size of the footing by

Terzaghis formula. Use a factor of $3$ and NC $=10,$ Nq $=2$ and N $=2.$