Marcapunta, an underground mine that produces copper minerals.
The underground mining methods are Sub level Stopping with cemented back fill and Room and Pillar with long holes. The pillars left in the ground are chain pillars that run along the entire mining direction and cover the mantle’s extension. This method varies depending on the mining sector. Recovery of ore pillars using cemented or detrital backfill is planned.
El Brocal underground mine is located in the southern projection of the open pit.
Underground operations
1.Marcapunta Norte
2.Marcapunta Centro
3.Marcapunta Sureste
4.Marcapunta Suroeste
5.Marcapunta Sur
The underground mining methods are Sub Level Stopping with cemented backfill and Room and Pillar with long holes. The pillars left in the ground are chain pillars that run along the entire mining direction and cover the mantle’s extension.
This method varies depending on the mining sector:
- North Sector: the stope is 8 m wide, 28 m high, and length varies between 50 to 100 m; the pillar width has been set at 6 m.
- South Sector, which includes the Southwest and Southeast Zone: the stope is 14 m wide, 28 m high, and the length varies between 50 and 100 m, with a pillar width of 6 m.
Currently, El Brocal mine uses the long-hole Sub Level Stopping mining method and detrital fill in the most unfavorable sectors. Additionally, the height of overburden varies fro ........
