Research Article
Effects of Cyclic Loading on the Pore Structure of Anthracite Coal
Table 6
Comparison of the growth amplitudes of the porosity under different loading conditions.
| Frequency (Hz) | Amplitude (MPa) | Total porosity | Growth amplitude (%) | Growth amplitude of adsorption pores (%) | Growth amplitude of seepage pores (%) |
| — | 15 | 11.32 | — | — | — | 7 | 10–20 | 10.22 | −9.75 | −12.00 | −8.58 | 12–18 | 14.41 | 27.29 | −8.37 | 45.02 | 14–16 | 14.47 | 27.79 | 14.10 | 34.63 | 4 | 12–18 | 12.71 | 12.26 | −17.33 | 26.95 | 7 | 14.41 | 27.29 | −8.27 | 45.05 | 10 | 19.81 | 74.99 | 40.00 | 92.34 |
|
|