Question

The ultimate bearing capacity of a square footing on surface of a saturated clay having unconfined compression strength of 50 $kN/m^2$ (using skempton's equation) is

• A. $250kN/m^2$
• B. $180kN/m^2$
• C. $150kN/m^2$
• D. $125kN/m^2$

Answer 1

The correct option is C $150kN/m^2$

$q_{nu}{c}_u{N}_c$

$where{c}_u=\frac{50}{2}=25kN/m2$

$N_c=6(1+0.2D_f/b)$

$for{D}_f=0,weget{N}_c=6$

$\therefore q_{nu}=25\times 6=150kN/m^2$