Research Article
Parametric Study on the Ground Control Effects of Rock Bolt Parameters under Dynamic and Static Coupling Loads
Table 3
Range of the dynamic load strain rate of coal mine dynamic disasters.
| | Number | E (J) | F (Hz) | (m/s) | SR (s−1) |
| | 1 | 1240 | 3∼25 | 0.20∼0.84 | 1.5 × 10−3∼5.3 × 10−2 | | 2 | 8270 | 2∼18 | 0.34∼1.00 | 1.7 × 10−3∼4.6 × 10−2 | | 3 | 22600 | 2∼18 | 0.79∼3.44 | 4.0 × 10−3∼1.6 × 10−1 | | 4 | 27100 | 1∼15 | 0.44∼3.50 | 1.1 × 10−3∼1.3 × 10−1 | | 5 | 50400 | 2.5∼15 | 0.50∼3.27 | 3.2 × 10−3∼1.2 × 10−1 | | 6 | 103000 | 0.5∼12 | 1.23∼3.65 | 1.6 × 10−3∼1.1 × 10−1 | | 7 | 3970000 | 0.4∼5 | 8.45∼12.27 | 8.6 × 10−3∼1.6 × 10−1 |
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E is the energy, F is the frequency, is the peak velocity, and SR is the strain rate. |
