Research Article
Failure Mechanism of a Coal-Rock Combined Body with Inclinations of Structural Planes and a Calculation Model for Impact Energy
Table 9
Measured values of AE impact energy in specimens and their relative errors.
| | Serial number of specimens | Predicted AE impact energy (ms·mV) | Measured AE impact energy (ms·mV) | Relative error (%) | Serial number of specimens | Predicted AE impact energy (ms·mV) | Measured AE impact energy (ms·mV) | Relative error (%) |
| | CR-0-1 | 149120 | 143014 | −4.1 | CR-30-1 | 59406 | 59104 | −0.5 | | CR-0-2 | 158076 | 149484 | −5.4 | CR-30-2 | 72918 | 67522 | −7.4 | | CR-0-3 | 177639 | 161884 | −8.9 | CR-30-3 | 63519 | 61232 | −3.6 | | Mean | 161612 | 151461 | | Mean | 65281 | 62619 | | | CR-15-1 | 108598 | 105713 | −2.7 | CR-45-1 | 39346 | 38733 | −1.6 | | CR-15-2 | 126963 | 123693 | −2.6 | CR-45-2 | 45893 | 43654 | −4.9 | | CR-15-3 | 108887 | 114063 | 4.8 | CR-45-3 | 41178 | 38940 | −5.4 | | Mean | 114816 | 114490 | | Mean | 42139 | 40442 | |
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