Table 2 Design scheme of cutting roof parameters.

From: The mechanistical principles and engineering application of roof- cutting for roadway protection in advance of the working face

 

Group number

Parameter value

 

Group number

Parameter value

Cutting depth

1

0 m

Cutting angle

1

10°

2

10 m

2

15°

3

13 m

3

20°

4

16 m

  

5

19 m

  
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