Research Article
Investigation on Dynamic Stability of Cement-Stabilized Expansive Soil Subgrades Subjected to Repeated Heavy-Haul Train Loads
Table 4
Dynamic shear parameters under different test conditions.
| Frequency (Hz) | Virgin expansive soil | Expansive soil improved with 3% cement content | Expansive soil improved with 5% cement content | cd (kPa) | φd (°) | cd (kPa) | φd (°) | cd (kPa) | φd (°) |
| 1 | 10.5 | 15.4 | 24.1 | 38.3 | 32.6 | 31.2 | 5 | 12.3 | 8.4 | 25.2 | 36.2 | 36.5 | 22.4 |
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