Research Article
Investigation on Dynamic Stability of Cement-Stabilized Expansive Soil Subgrades Subjected to Repeated Heavy-Haul Train Loads
Table 9
Maximum dynamic elasticity moduli and maximum damping ratio.
| f (Hz) | σ3 (kPa) | Virgin expansive soil (MPa) | Expansive soil stabilized with 3% cement content (MPa) | Expansive soil stabilized with 5% cement content (MPa) | Edmax | λmax | Edmax | λmax | Edmax | λmax |
| 1 | 15 | 68.68 | 31.21 | 184.84 | 25.16 | 243.90 | 26.77 | 30 | 84.53 | 27.33 | 207.47 | 21.73 | 270.27 | 22.55 | 60 | — | — | 234.74 | 17.56 | 285.71 | 18.76 |
| 5 | 15 | 79.11 | 38.21 | 215.05 | 29.14 | 270.27 | 28.15 | 30 | 102.25 | 36.87 | 238.10 | 25.37 | 297.62 | 25.32 | 60 | — | — | 242.72 | 19.33 | 322.58 | 17.59 |
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