The ultimate bearing capacity per unit area of a soil for general shear failure is

[c= Cohesion value, r= Radius of footing, B= Width of footing, $D_{f}$ = Depth of foundation, $γ$ = Density of soil, and $N_{c}, N_{q}, N_{γ}$ = Bearing capacity factors]

- 1
  
  $0.5 γ B N_{γ} + γ D_{f} N_{q}$
- 2
  
  $c N_{c} + 0.5 γ B N_{γ} + γ D_{f} N_{q}$
- 3
  
  $1.3 c N_{c} + γ D_{f} N_{q} + 0.6 γ . r . N_{γ}$
- 4
  
  $1.3 c N_{c} + γ D_{f} N_{q} + 0.4 γ B N_{γ}$

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