Research Article
Study on the Precursors of Coal-Rock Fracture Based on the Maximum Lyapunov Exponent of Acoustic Emission Parameters
Table 2
Summary of mechanical parameters of coal-rock standard specimens.
| | Specimen number | Peak stress (MPa) | Peak strain |
| | 1 | 4.983107832 | 0.001380257 | | 2 | 4.25060345 | 0.001200344 | | 3 | 2.543909411 | 0.000707774 | | 4 | 6.694057265 | 0.001823883 | | 5 | 2.976446791 | 0.00086566 | | 6 | 8.223110102 | 0.002464985 | | 7 | 3.151081825 | 0.000962933 | | 8 | 8.619113876 | 0.002626044 | | 9 | 3.169886512 | 0.001005317 | | 10 | 3.169886512 | 0.001005317 |
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