Research Article
Research on the Deformation Mechanism and Directional Blasting Roof Cutting Control Measures of a Deep Buried High-Stress Roadway
Table 5
Deformation and stress of the roadway with different roof cutting heights.
| | Cutting height (m) | Peak stress (MPa) | Left deformation (mm) | Right deformation (mm) | Roof subsidence (mm) | Floor heave (mm) | Stress concentration |
| | 0 | 58.06 | 548 | 569 | 579 | 549 | Obvious | | 10 | 48.99 | 303 | 313 | 328 | 263 | Slightly obvious | | 12 | 46.80 | 243 | 253 | 268 | 208 | Slightly obvious | | 14 | 39.00 | 213 | 203 | 220 | 184 | Not obvious |
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