Table 3 Calculation results of L1 and L2 under different simulation depths.

From: Gas pressure evolution characteristics of deep true triaxial coal and gas outburst based on acoustic emission monitoring

Simulation depth(m)

\({\overline{\text{E}}}_{{1}}\)(mv∙ms)

\({\overline{\text{E}}}_{{2}}\)(mv∙ms)

L1

The early incubation

The later incubation

NL

NH

L2

NL

NH

L2

600

187

940

5.0

20

6

0.3

6

15

2.5

800

130

682

5.2

11

3

0.27

6

13

2.2

1000

67

605

9.0

10

2

0.2

4

14

3.5

1200

267

1872

7.01

27

4

0.15

11

41

3.7

1400

289

1611

5.5

24

6

0.25

12

30

2.5