Table 13 Peak stress statistics for monitoring points by programme.

From: Research on the optimization of optimal blasting parameters and fragmentation control based on coal seam geological conditions

Scheme

Peak stress at point A (MPa)

Peak stress at point B (MPa)

Peak stress at point C (MPa)

Peak stress at point D (MPa)

Average peak stress (MPa)

Scheme 1

7.87

59.86

38.28

16.88

30.72

Scheme 2

8.02

57.37

30.99

14.47

27.7125

Scheme 3

6.12

50.02

40.42

18.90

28.865

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