Pile Foundation Design Calculator

Design driven and bored piles using alpha (cohesive) and beta (granular) methods. Analyse shaft friction, end bearing, settlement, and negative skin friction with per-layer capacity breakdown.

Eurocode 7 · ASCE/FHWA · AS 2159

Configuration

Standard

Pile Type

Diameter (mm)

Length (m)

Loading

Ultimate Axial Load (kN)

Safety Factor

Water Table Depth (m)

Soil Profile

Layer 1

Description

Soil Type

Thickness (m)

Unit Weight (kN/m³)

cu (kPa)

SPT N

Layer 2

Description

Soil Type

Thickness (m)

Unit Weight (kN/m³)

φ (degrees)

SPT N

Design Results

PASS

Capacity Summary

Shaft Capacity

2749.2 kN

Base Capacity

1736.6 kN

Ultimate Capacity

4485.7 kN

Allowable Capacity

1794.3 kN

Design Checks

Axial Utilisation

44.6%

PASS

Settlement

14.11 mm

PASS

Per-Layer Shaft Contribution

Layer	Shaft Force (kN)	Fraction
Soft Clay	155.5	5.7%
Medium Dense Sand	2593.7	94.3%