Research Article
Fatigue Life Characteristics of Segmental Lining Structure for the Shallow Buried Metro Tunnel under the Dynamic Load of a High-Speed Railway
Table 3
Fatigue life of segment at different buried depths.
| | Depth | The joint between the two rings | The end of the bolt | | Minimum stress /(MPa) | Maximum stress /(MPa) | Fatigue life | Minimum stress /(MPa) | Maximum stress /(MPa) | Fatigue life |
| | 5m | 0.7326 | 1.2955 | 7.658 | 0.7185 | 1.2104 | 8.108 | | 7m | 0.7911 | 1.2342 | 8.055 | 0.7867 | 1.1599 | 8.456 | | 10m | 0.8933 | 1.2192 | 8.135 | 0.8615 | 1.1321 | 8.687 | | 13m | 1.0944 | 1.3384 | 7.697 | 1.1554 | 1.2631 | 8.282 | | 16m | 1.2657 | 1.4218 | 7.532 | 1.1924 | 1.3198 | 8.011 |
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