A slender pile cutaway exposes soil-contact bands along the shaft and an end-bearing bulb. Under an increasing head load, common settlement mobilizes shaft and toe resistance; arrows and an axial-force diagram show where load leaves the pile.
• 3D scene parts: Pile cap and head load; embedded pile and shaft contacts; shaft transfer arrows; toe bearing zone; axial force recorder. • Controls: Target head load (100–2000 kN); Embedded pile length (8–20 m); Pile diameter (0.3–0.8 m); Ultimate uniform shaft stress (15–70 kPa); Ultimate toe stress (500–4000 kPa). • Live readouts: Applied head load (kN); Mobilized shaft resistance (kN); Mobilized toe resistance (kN); Idealized ultimate resistance (kN); Common settlement (mm); Unbalanced load (kN). • Guided experiments: Weak toe; Long pile; Overload. • Four tabs (visual laboratory, curves and measurements, experiments, learn and assess), a model-verification run, a timestamped event log and a trial report.
Qs=πDL τult; Qb=(πD²/4) qb,ult Fs=Qs[1−exp(−s/0.008)] Fb=Qb[1−exp(−s/0.04)] Solve Fs+Fb=P for common settlement s N(z)=P−Fs z/L
Representative rigid pile with uniform shaft stress and independent lumped exponential shaft/toe laws. Not a site-calibrated t–z/q–z analysis. No pile compression, negative skin friction, group effects or structural buckling. If demand exceeds capacity, settlement is capped at 300 mm for display and the unbalanced load is reported. Geometry is normalized; resistance uses selected physical dimensions. Try the preset experiments, then compare the live readouts with the equations.
Yes. Shaft area is πDL.
No. The display cap prevents runaway geometry; the residual records lack of equilibrium.
Representative rigid pile with uniform shaft stress and independent lumped exponential shaft/toe laws. Not a site-calibrated t–z/q–z analysis. No pile compression, negative skin friction, group effects or structural buckling. If demand exceeds capacity, settlement is capped at 300 mm for display and the unbalanced load is reported. Geometry is normalized; resistance uses selected physical dimensions.