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Mathematical Problems in Engineering
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Mathematical Problems in Engineering
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2014
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Article
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Tab 8
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Research Article
Vulnerability Analysis of Soft Caving Tunnel Support System and Surrounding Rock Optimal Control Technology Research
Table 8
Quality ranks of strengthened rock thickness and quantitative scores.
Name
Quantitative data and description
Strengthened rock thickness (
/m)
<2
>8
Quality ranks
Small
Relatively small
Medium
Relatively large
Large
Scores
2
4
6
8
10