Research Article
Investigation on Dynamic Stability of Cement-Stabilized Expansive Soil Subgrades Subjected to Repeated Heavy-Haul Train Loads
Table 10
Comparison between the dynamic stress amplitude of the subgrade and the critical dynamic stress.
| Subgrade depth (m) | Dynamic stress level of the subgrade (kPa) | Critical dynamic stress (kPa) | Evaluation result | 25 tons, 120 km/hr | 30 tons, 120 km/hr |
| 0–0.6 | 60.3–100.2 | 70.9–115.8 | 257–380 | Meet stability | 0.6–2.5 | 22.5–60.3 | 28.2–70.9 | 148.8–233.1 | Meet stability | 2.5–4.5 | 15.1–22.5 | 19.4–28.2 | 142.5–249.7 | Meet stability |
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