Vulnerability Analysis of Soft Caving Tunnel Support System and Surrounding Rock Optimal Control Technology Research

Table 10

Quality ranks of tunnel repair and quantitative scores.

Name	Quantitative data and description
Repair rate (𝑅/%)	<10	10≤𝑅<20	20≤𝑅<30	30≤𝑅≤50	>50
Affecting ranks	Small	Relatively small	Medium	Relatively large	Large
Scores	2	4	6	8	10