Table 2 Major technical parameters of support
From: Strata behavior at fully-mechanized coal mining and solid backfilling face
Type | ZZC8800/20/38 | Working resistance (kN) | 8800 |
|---|---|---|---|
Height (mm) | 2000–3800 | Support strength (MPa) | 0.73 |
Center distance (mm) | 1500 | Tamping force (kN) | 1545 |
Initial supporting force (kN) | 7824 | Tamping angle (°) | 0.50 |