Deep-hole drill jumbo is adopted to construct downward parallel deep holes in the drilling chamber. After side caving, ore is discharged by scraper into orepass. Ore block has two-stage stoping. After the first-stage stoping, mined-out areas are filled with cemented filling materials to form stable support. Then the second-stage stoping is carried out.
Stable, sharply inclined, thick and extremely thick orebodies; extremely thick inclined, slightly inclined and horizontal orebodies.
Large production capacity, centralized management, low mining costs, and high degree of safety.
Stoping Method |
Production Capacity (t/d) |
Loss Rate (%) |
Dilution Rate (%) |
Block open stope succedent filling |
200-600 |
5-10 |
10-15 |
There are many transport methods, such as rail transport, trackless transport and belt conveyor. The specific method should be determined based on the orebody development scheme, transport volume and distance, mineral composition, ore properties, mining method and techno-economic comparison results.