Chapter 16, Problem 16.6P

Redo Problem 16.2 using the modified general ultimate bearing capacity Eq. (16.31).

16.1 A continuous footing is shown in Figure 16.17. Using Terzaghi’s bearing capacity factors, determine the gross allowable load per unit area (q_all) that the footing can carry. Assume general shear failure. Given: γ = 19 kN/m³, c′ = 31kN/m², ${\varphi }^{\prime }=28°$, D_f = 1.5 m, B = 2 m, and factor of safety = 3.5.

Figure 16.17

6.2 Refer to Problem 16.1. If a square footing with dimension 2 m × 2 m is used instead of the wall footing, what would be the allowable bearing capacity?