Question

The ultimate bearing capacity of a surface strip footing on clay, according to Terzaghi's theory, is
Where C - unit cohesion,
$q_u$ = unconfined compressive strength,
and B - width of footing

• A. 5.7 C
• B. 5.14 C
• C. $q_{u}B$
• D. 9 C

Answer 1

The correct option is A 5.7 C

As per Terzaghi's theory

$q_u=C{N}_c+q{N}_q+B\gamma N_{\gamma }$ ... (i)

For clay $N_c=5.7$
$N_q=1$
$N_{\gamma }=0$

For surface footing q = 0
From (i)
$q_u=5.7C$