Table 10 Support parameters.
From: Short-wall roadway backfill method for sustainable mining
Position | Support pattern | Support parameters | |
|---|---|---|---|
Mining crosscut | Roof | Bolt and anchor combined support | Anchor: Φ18 × L3000 mm (Anchorage length ≥ 700 mm; Quantity:5; Inter-row spacing: 1100 mm × 1200 mm) Anchor rope: Φ17.8 × L5200 mm (Anchorage length ≥ 1500 mm; Quantity:1) |
Two shifts | Rock bolting | Anchor: Φ20 × L2000 mm (Anchorage length ≥ 700 mm; Quantity:5; Inter-row spacing: 1200 mm × 1200 mm) | |
Backfilling crosscut | Roof | Bolt and anchor combined support | Anchor: Φ18 × L2000 mm (Anchorage length ≥ 700 mm; Quantity:4; Inter-row spacing: 1300 mm × 1500 mm) Anchor rope: Φ17.8 × L5200 mm (Length: 2000 mm; Diameter:20 mm; Anchorage length ≥ 1500 mm; Quantity:1) |
Two shifts | Rock bolting | Anchor: Φ18 × L2000 mm (Anchorage length ≥ 700 mm; Quantity:5; Inter-row spacing: 1200 mm × 1500 mm) |
