Research Article
Dynamic Characteristics of the Surrounding Soil during the Vibrational Pulling Process of a Pile Based on DEM
Table 1
Micro/macroparameters used in the pile-pulling model.
| | Parameter (unit) | Clay | Clump | | Diameter (m) | 0.06–0.10 | 0.05 | | Density (kg/m3) | 1700 | 2400 | | Normal stiffness (N/m) | 1.2 × 107 | 5.0 × 109 | | Shear stiffness (N/m) | 1.2 × 107 | 5.0 × 109 | | Friction coefficient | 0.55 | 1.50 | | Normal strength of the contact bond (Pa) | 2.50 × 104 | — | | Shear strength of the contact bond (Pa) | 2.50 × 104 | — | | Normal stiffness of the parallel bond (N/m) | — | 9.20 × 109 | | Shear stiffness of the parallel bond (N/m) | — | 9.20 × 109 | | Normal strength of the parallel bond (Pa) | — | 1.00 × 108 | | Shear strength of the parallel bond (Pa) | — | 1.00 × 108 | | Parallel bond radius multiplier | — | 1.00 |
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