FIELD: mining.
SUBSTANCE: claimed process comprises erection at open pit bottom of ore pad with impervious loam-film screen, deriving of drain brines via water discharge gallery for safe working of underlying mineral reserves. Note here that protective pillar is extracted and composed of the mineral and replaced with artificial pillar of the filling material. Replacement is executed simultaneously with excavation in open pit at no danger of water inrush from the pit into underground working while said artificial pillar is stabilised and dome-shaped.
EFFECT: ruled out water inrush, loss of minerals in separation pillar and decreased time break between open and underground working.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR COMBINED DEVELOPMENT OF MINERAL DEPOSITS | 2009 |
|
RU2400625C1 |
| PROCESS OF DEVELOPMENT OF RESERVES OF THICK STEEPLY DEEPENING DEPOSITS OF ORE LOCATED UNDER PITS | 2001 |
|
RU2202041C2 |
| METHOD OF COMBINED MINING OF FLOODED MINERAL DEPOSITS | 1999 |
|
RU2165018C2 |
| METHOD FOR RECONSTRUCTION OF A FLOODED MINE MINED BY OPEN-UNDERGROUND METHOD | 2023 |
|
RU2798370C1 |
| LAYERED ROOM-AND-PILLAR SYSTEM WITH COMPLETE STOWING | 2011 |
|
RU2486340C2 |
| METHOD OF REMINING OF MINERAL DEPOSITS | 0 |
|
SU1452992A1 |
| STEEP MINERAL DEPOSIT DEVELOPMENT METHOD | 2005 |
|
RU2279544C1 |
| METHOD FOR COMBINED MINING OF FIELDS | 2011 |
|
RU2471988C1 |
| UNDERGROUND DEVELOPMENT METHOD OF SERIES OF THIN STEEP DEPOSITS | 2009 |
|
RU2425218C1 |
| METHOD OF COMBINED MINING OF MINERAL DEPOSITS IN OPENCAST CONTOUR ZONE | 2000 |
|
RU2187643C2 |
