Research Article
Vulnerability Analysis of Soft Caving Tunnel Support System and Surrounding Rock Optimal Control Technology Research
Table 19
Vulnerability assessment index scores of original supporting tunnel.
| | Indicator factors | Integrity of surrounding rock | Roof rock strength | Coal strength | Tunnel’s section size | Depth of tunnel | Geological structure | Impact of coal pillar | Thickness of strengthened rock | Tunnel support strength | Tunnel’s repair rate | Construction quality coefficient |
| | Parameters | 28.44 | 31.45 | 5.38 | 11.2 | 350 | II | 25 | 7.61 | 0.253 | 23 | 29 | | Scores | 8 | 8 | 10 | 4 | 6 | 4 | 6 | 8 | 6 | 6 | 6 |
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