Research Article
Analysis on the Influence Degree of Deformation Control Factors of Deep-Buried Roadway’s Fractured Surrounding Rock Using Orthogonal Design
Table 1
The level value of the main control factors.
| | Main control factors | Level 1 | Level 2 | Level 3 |
| | Bolt length (m) | 2.0 | 2.5 | 3.0 | | Row spacing between bolts (m × m) | 0.6 × 0.6 | 0.8 × 0.8 | 1.0 × 1.0 | | Cable length (m) | 5 | 7 | 9 | | Row spacing in U-shaped steel (m) | 0.4 | 0.7 | 1.0 |
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