Chainage

Palmstrom [45]

Russenes [43]

RMi/σ_Θr

RMi/σ_Θw

For Roof

For walls

I_{s (50)}

σ_Θ

Description

0+876 - 1+000

0.99

1.67

Light Rock Burst

High Stress, slightly loosening

5.65

10.06

No rock burst

1+000 - 1+600

0.31

0.64

Heavy Rock Burst

Light rock burst

4.52

30.55

Moderate rock burst

1+600 - 2+000

0.25

0.47

Heavy Rock Burst

4.52

38.85

2+000 - 2+400

0.23

0.43

4.52

41.73

2+400 - 2+800

0.23

0.41

4.52

43.32

2+800 - 3+200

0.25

0.49

4.52

33.10