Research Article
Research on Failure Mechanism and Parameter Sensitivity of Zonal Disintegration in Deep Tunnel
Table 1
Comparison between theoretical calculation result and in situ test value.
| Fracture zone | In situ test value | Theoretical calculation result |
| 1 | Inner radius (m) | 2.50 | 2.50 | External radius (m) | 4.99 | 4.64 |
| 2 | Inner radius (m) | 5.75 | 5.52 | External radius (m) | 6.55 | 6.75 |
| 3 | Inner radius (m) | 7.74 | 7.56 | External radius (m) | 8.78 | 8.93 |
| 4 | Inner radius (m) | 9.87 | 9.65 | External radius (m) | 10.40 | 11.36 |
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