Description :
Horizontal excavation service (preparation and deepening) in mechanized polymetallic mines.
- 1,700 m/month of excavations (55% of the progress plan).
- Underground excavation in sections of 5.0 m x 5.0 m and 5.0 m x 4.5 m.
- Cable bolting with cabolt equipment 24,000 m/month injected.
- Drilling with 16-foot rods and 2-arm rigs.
- Construction of high resistance walls for 30 meter banks (long holes).
- Placement of 12,000 bolts/month.
