1Footing and soilFooting type, B, Df; c, φ, γ; groundwater; factor of safety General shear failure (dense/stiff soil) is assumed. For loose sand or soft clay, switch on local shear: c′ = ⅔c, tan φ′ = ⅔ tan φ (Terzaghi's recommendation).
3Bearing capacity factors and termsNc, Nq, Nγ; surcharge q; water-table correction Contribution of each term