BearingCalc — Pad / Strip Footing

Geometry

Footing type

Length, Lm (Strip: 1.0, per m run)

Width, Bm

Founding depth below GL, Dm

Friction angle, φ₁′deg

Cohesion, c₁′kN/m²

Bulk unit weight, γ₁kN/m³

Layer 1 thickness below founding, H₁m (to top of Layer 2)

Friction angle, φ₂′deg (0 = clay)

Cohesion / cu, c₂kN/m²

Bulk unit weight, γ₂kN/m³

Clear both φ₂ and c₂ to revert to a single-layer problem.

Water table depth below founding, dwm (≥ Hf ⇒ no effect)

Pad / backfill density (self-wt), γckN/m³

Factor of safety, FoSon q(ult)

Load spread through Layer 1 (V:H): 1 (2 = 2V:1H)

Layer 1 modulus, E₁′MN/m² (MPa)

Layer 2 modulus, E₂′MN/m² (MPa)

Settlement depth = factor × B× B

Load	P (kN)	x (m)	y (m)

Pad Effective area ● Load ✕ Resultant

s = Σ ( Δσ_mid · t / E ) — stress by 2:1 spread

Layer	t (m)	z_mid (m)	Δσ (kN/m²)	E (MPa)	s (mm)
Total settlement, Σs					—