Research Article
Plastic Zone Analysis of Deep-Buried, Noncircular Tunnel and Application on the High-Speed Railway in the Karst Area
Table 2
Maximum stress after the excavation stability at every step.
| Step | Stress (Mpa) | Step | Stress (Mpa) |
| The first up-step | 1.21 | The first down-step | 1.53 | The second up-step | 1.69 | The second down-step | 1.99 | The third up-step | 1.94 | The third down-step | 2.32 | The forth up-step | 2.48 | The forth down-step | 2.87 | The fifth up-step | 2.79 | The fifth down-step | 2.94 | The sixth up-step | 2.64 | ā | ā |
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