Table 3 Dynamic and static loading scheme.

From: Analysis on characteristics and mechanism for rock fracture in deep rock with cracks under dynamic-static coupling effect

Loading method

Single-axis impact

Three-axis impact

Radial circumferential pressure/MPa

0

1.2

Axial impact air pressure/MPa

0.15

0.4

0.20

0.5

0.25

0.6

Number of specimens

45

36

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