Table 4.
Rock pressure behaviors of the 10204 and 10202 Longwall panels.
| Parameters | 10204 longwall panel | 10202 longwall panel | ||||
|---|---|---|---|---|---|---|
| Upper- part |
Middle- part |
Lower- part |
Upper- part |
Middle- part |
Lower- part |
|
|
First weighting interval (m) |
59 | 53 | 65 | 55 | 52 | 63 |
|
Peak working resistance during first weighting (MPa) |
28.59 | 40.51 | 39.54 | 35.83 | 40.32 | 39.91 |
|
Periodic weighting interval (m) |
45 | 39 | 41 | 41.6 | 39.7 | 40.0 |
|
Peak working resistance during periodic weighting (MPa) |
27.63 | 40.82 | 39.26 | 35.23 | 40.97 | 39.08 |
|
Average working resistance (MPa) |
20.75 | 25.62 | 23.19 | 22.56 | 25.92 | 24.65 |