Table 4: Variation of pile head displacement versus pile diameter in different nonlinear analysis methods with constant EI for the pile.

Pile diameter (m)Pile deflection at the ground level (mm)
SandClay
3D FEMp-y SALLOP3D FEMp-y SALLOP
Free tipHinged tip

1.0091.057.0 (35%)36.0 (60%)45.545.3 (1%)31.2 (32%)45.0 (1%)
2.0060.643.5 (29%)36.0 (41%)33.940.5 (20%)30.0 (12%)45.0 (33%)
4.0040.038.2 (5%)36.0 (10%)25.137.5 (50%)28.5 (14%)45.0 (80%)