Shock and Vibration / 2015 / Article / Tab 3

Research Article

The Mechanism and Application of Deep-Hole Precracking Blasting on Rockburst Prevention

Table 3

Bursting proneness testing results of coal and coal-rock mass combination.

Sample number/ms/MPaBursting proneness degree

A-13161.443.1010.08Weak
A-23581.552.3713.64
A-33791.932.4115.21
Average3511.642.6312.98

B-12182.065.4915.89Weak
B-21323.822.7416.98
B-31502.573.5215.96
Average1662.823.9216.28

C-1167.836.6217.26Strong
C-2810.834.5021.23
C-3139.685.8719.12
Average12.39.445.5319.20

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