Table 3 The fitting result of CH4 desorption amount and coal strain with time.
From: Experimental study of gas flow and coal deformation at different levels of axial/radial stress ratio
σ% | aj | bj | R2 | εj-X | εj-Y | εj-V | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Aj | Bj | R2 | Aj | Bj | R2 | Aj | Bj | R2 | ||||
1.5 | −3.28 | 0.46 | 0.996 | −1.22 | 0.35 | 0.96 | −0.15 | 0.75 | 0.99 | −2.58 | 0.37 | 0.96 |
2.0 | −3.18 | 0.47 | 0.998 | −1.19 | 0.35 | 0.98 | −0.13 | 0.75 | 0.94 | −2.50 | 0.37 | 0.99 |
2.5 | −3.01 | 0.47 | 0.994 | −1.15 | 0.38 | 0.98 | −0.11 | 0.75 | 0.99 | −2.39 | 0.40 | 0.99 |
3.0 | −2.92 | 0.46 | 0.990 | −1.15 | 0.31 | 0.98 | −0.10 | 0.77 | 0.97 | −2.38 | 0.32 | 0.98 |
3.5 | −2.65 | 0.47 | 0.995 | −1.14 | 0.28 | 0.98 | −0.07 | 0.75 | 0.99 | −2.34 | 0.29 | 0.98 |
