Table 2 Simulation working condition.

From: Analysis and construction of the coal and rock cutting state identification system in coal mine intelligent mining

Firmness coefficient of coal/fcoal

Firmness coefficient of rock/frock

Coal-rock volume ratio

1.4

3.5 (Soft gangue)

0:1 1:1 1:3 3:1 1:0

5.1 (Hard gangue)

0:1 1:1 1:3 3:1 1:0

6.8 (Floor)

0:1 1:1 1:3 3:1 1:0

7.4 (Roof)

0:1 1:1 1:3 3:1 1:0

8.4 (Inclusion)

Come across inclusion

3.5 (Soft gangue), 5.1 (Hard gangue), 6.8 (Floor), 7.4 (Roof) randomly mixed

Cross fault

2.38

3.5 (Soft gangue)

0:1 1:1 1:3 3:1 1:0

5.1 (Hard gangue)

0:1 1:1 1:3 3:1 1:0

6.8 (Floor)

0:1 1:1 1:3 3:1 1:0

7.4 (Roof)

0:1 1:1 1:3 3:1 1:0

8.4 (Inclusion)

Come across inclusion

3.5 (Soft gangue), 5.1 (Hard gangue), 6.8 (Floor), 7.4 (Roof) randomly mixed

Cross fault

3.8

3.5 (Soft gangue)

0:1 1:1 1:3 3:1 1:0

5.1 (Hard gangue)

0:1 1:1 1:3 3:1 1:0

6.8 (Floor)

0:1 1:1 1:3 3:1 1:0

7.4 (Roof)

0:1 1:1 1:3 3:1 1:0

8.4 (Inclusion)

Come across inclusion

3.5 (Soft gangue), 5.1 (Hard gangue), 6.8 (Floor), 7.4 (Roof) randomly mixed

Cross fault