Research Article
Model Test Study on the Antibreaking Technology of Reducing Dislocation Layer for Subway Interval Tunnel of the Stick-Slip Fracture
Table 5
The antibreaking effect of principal stress.
| Working conditions | The maximum value of the first principal stress (MPa) | The antibreaking effect of the first principal stress (%) | The maximum value of the third principal stress (MPa) | The antibreaking effect of the third principal stress (%) |
| 1 | 4.54 | ā | 16.72 | ā | 2 | 2.36 | 48.11 | 9.36 | 44.04 | 3 | 3.01 | 33.70 | 10.71 | 35.96 | 4 | 1.37 | 69.82 | 6.01 | 64.06 |
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