Table 2 Judgment matrix.

From: Roadway roof stability grading method based on multi-index optimization

 

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A1

1

         

A2

3

1

        

A3

4

2

1

       

A4

1/2

1/3

1/7

1

      

A5

1

1/2

1/5

1/3

1

     

A6

1/3

1/5

1/9

1/7

1/5

1

    

A7

1/4

1/3

1/7

1/7

1/7

1/2

1

   

A8

2

1/2

1/2

1/2

2

3

3

1

  

A9

2

1/2

1/2

1/2

2

3

3

1

1

 

A10

3

1

1

1

3

5

5

2

1

1

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