Bowles Allowable Bearing Capacity

Bowles Bearing Capacity for pad foundation

$ q_a(kPa) = 19.16(N_1)_{55} f_d\left(\dfrac{S}{25.4}\right), \ B \ \le \ 1.2m $

$ q_a(kPa) = 11.98(N_1)_{55}\left(\dfrac{3.28B + 1}{3.28B} \right)^2 f_d \left(\dfrac{S}{25.4}\right), \ B \ \gt 1.2m $

$f_d = 1 + 0.33 \cdot \dfrac{D_f}{B} \le 1.33$

$q_a(kPa) = 11.98(N_1)_{55}f_d\left(\dfrac{S}{25.4}\right)$

$f_d = 1 + 0.33 \cdot \dfrac{D_f}{B} \le 1.33$