Worked Examples
Practical engineering resources with formulas, examples, assumptions, limitations, and clear internal links to related calculators.
9 min
Axial Pile Capacity Example
Worked circular pile example combining average shaft resistance and toe resistance to calculate ultimate and allowable axial capacity.
9 min
Biaxial Footing Contact Pressure Example
Worked rectangular footing example calculating eccentricities, kern status, four corner pressures, and allowable-pressure utilization.
8 min
Elastic Foundation Settlement Example
Worked SI-unit example estimating immediate elastic settlement and evaluating the assumptions that control the result.
7 min
Percent Compaction Formula: Worked Field Density Example
Calculate percent compaction from wet density, moisture content, and Proctor MDD with a complete field dry-density and acceptance example.
8 min
Spread Footing Sizing Example
Worked service-load example for sizing and rounding a rectangular spread footing using allowable soil pressure.
5 min
Bearing Capacity Calculation Example
Worked bearing capacity example showing terms, units, allowable pressure, and interpretation.
5 min
Concrete Slab Volume Example
Worked concrete slab volume example with thickness conversion and waste factor.
5 min
Factor of Safety Example
Worked factor of safety example showing resistance-demand interpretation.
5 min
Infinite Slope Stability Example
Worked infinite slope stability example with slope angle, soil thickness, cohesion, friction, and pore pressure.
5 min
Manning's Equation Example
Worked Manning equation example calculating channel velocity and discharge.
5 min
Retaining Wall Active Pressure Example
Worked active earth pressure example using Rankine Ka, triangular soil pressure, and surcharge pressure.
5 min
Settlement Calculation Example
Worked settlement calculation example explaining stress increase, compressible layer thickness, and serviceability.
5 min
Soil Classification Example
Worked USCS soil classification example using gradation and Atterberg limits.
5 min
Surcharge Load on Retaining Wall Example
Worked surcharge load example for retaining wall lateral pressure.
5 min
Unit Weight Conversion Example
Worked unit weight conversion example between pcf and kN/m3.