Terzaghi Calculator

Soil Cohesion (c)

kPa

Base of Foundation (B)

Moist Unit Weight (γ)

kN/m³

Saturated Unit Wt (γ_s)

kN/m³

Depth of Water Table (Dw)

Depth of Footing (Df)

Factor of Safety (FS)

N_c

N_q

N_γ

Shear Failure Type

Step 1: Solving for Effective Stress (q')

First Term

kPa

Second Term

kPa

Effective Stress (q')

kPa

Step 2: Solving for y'

Case Type

kN/m³

Step 3: Solving for qu and qa

Ultimate q_u

kPa

Allowable q_all

kPa

Load per unit length (P)

kN/m

Ultimate q_u

kPa

Allowable q_all

kPa

Total Allowable Load (P)

Ultimate q_u

kPa

Allowable q_all

kPa

Total Allowable Load (P)