Geotechnical Calculators Precision Calculator

Soil Bearing Capacity Calculator (Terzaghi)

Calculate ultimate and safe bearing capacity of strip, square, and circular shallow footings using Terzaghi theory.

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šŸ“ Terzaghi Bearing Capacity Equation

q_{ult} = c N_c s_c + gamma D_f N_q + 0.5 gamma B N_gamma s_gamma; quad q_{safe} = frac{q_{ult} - gamma D_f}{FS} + gamma D_f

šŸ“˜ Engineering Specifications & Method of Calculation

Geotechnical foundation analysis tool applying Terzaghi general bearing capacity theory with shape factors, cohesion, friction angle, and overburden surcharge.

Terzaghi Foundation Theory

Compute ultimate soil bearing capacity using cohesion c, effective unit weight γ, foundation depth Df, width B, and dimensionless factors Nc, Nq, Nγ determined from soil internal friction angle φ.

ā“ Frequently Asked Questions

What is the standard Factor of Safety (FS) for shallow foundations?

A Factor of Safety between 2.5 and 3.0 is standard in geotechnical engineering practice.