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eng.pile-capacity-meyerhof Calculator
Calculates ultimate pile capacity from Meyerhof's formula for skin friction and end bearing in cohesionless soil. Pile capacity from static formulas must be verified by dynamic load testing (PDA) or static load testing — formula predictions can vary ±50% from measured values.
Inputs
Pile Diameter M
Distance across a circle through its centre. Always confirm units match the rest of the calculation.
Pile Length M
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
Qu Average Kpa
Age in completed years. Many health and fitness formulas adjust for age.
Qu Tip Kpa
Reference formula or conversion factor shown for context.
Results
ultimate pile capacity (kN)
The value at the specified point or condition.
skin friction Qs (kN)
Sample size or count used in the calculation.
tip resistance Qp (kN)
Opposition to current flow (Ω). Ohm's Law: V = IR. Lower resistance means more current for the same voltage.
allowable load (FOS=3)
Reference formula or conversion factor shown for context.
alpha method (adhesion)
The recommended calculation method or analytical approach for these conditions.
Nc tip factor
A dimensionless multiplier applied in the calculation.