Research Article
Dynamic Stress of Subgrade Bed Layers Subjected to Train Vehicles with Large Axle Loads
Table 5
Statistical results of the maximum dynamic stress at the subgrade surface.
| | Statistical parameter | Axle load (t) for heavy-haul track irregularity | Axle load (t) for China’s three main lines track irregularity | | 30 | 32.5 | 35 | 30 | 32.5 | 35 |
| | μ (kPa) | 86.6 | 97.3 | 110.3 | 74.4 | 82.1 | 91.0 | | σ (kPa) | 10.1 | 9.82 | 10.23 | 8.1 | 8.34 | 8.91 | | μ + 3σ (kPa) | 116.9 | 126.8 | 141.0 | 98.7 | 107.1 | 117.7 |
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