Research Article
Analytical Model for the End-Bearing Capacity of Tapered Piles Using Cavity Expansion Theory
Table 2
Geotechnical properties of different sands.
| | Descriptions | TO | K-7 | Fanshawe brick sand (Sakr et al.) [23–25] |
| | Density of particles, (g/cm3) | 2.65 | 2.62 | 2.68 | | Maximum density, (g/cm3) | 1.64 | 1.60 | 1.772 | | Minimum density, (g/cm3) | 1.34 | 1.19 | 1.466 | | Density at 80%, (g/cm3) | 1.58 | 1.52 | na | | Density at 60%, (g/cm3) | 1.52 | 1.43 | na | | Maximum void ratio, | 0.98 | 1.20 | 0.794 | | Minimum void ratio, | 0.62 | 0.64 | 0.484 | | Void ratio at 90%, | na | na | 0.68 | | Void ratio at 80%, | 0.68 | 0.73 | na | | Void ratio at 60%, | 0.74 | 0.83 | na | | Effective grain size, (mm) | na | na | 0.14 | | Mean grain size, (mm) | na | na | 0.26 | | Uniformity coefficient, | 1.40 | 4.0 | 2.143 | | Coefficient of curvature, | 0.86 | 1.21 | 0.905 | | Percent fines, (%) | 1.10 | 14 | na | | Peak stress, (deg)° | 42.00 | 47.00 | 37.00 | | Critical stress state, (deg)° | 32.00 | 34.00 | 31.00 (assumed) |
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