FIELD: mining industry.
SUBSTANCE: method includes extraction of deposit resources by chambers through one of them, construction of ice-rock backfill in extracted space of primary chambers and following extraction of inter-chamber blocks. In inter-chamber blocks wedge-shaped slits are formed immediately in ceiling of deposit, space of slits is filled with ice-rock backfill, while slits are formed of inter-chamber blocks for 1/3 of width.
EFFECT: higher durability, higher effectiveness.
3 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR MINING MINERAL DEPOSITS | 0 |
|
SU1786264A1 |
METHOD OF WORKING THICK DEPOSITS OF MINERAL | 0 |
|
SU1086168A1 |
METHOD OF MINING MINERAL DEPOSITS | 0 |
|
SU1263855A1 |
SALINA DEVELOPMENT METHOD | 2009 |
|
RU2438017C2 |
METHOD FOR EXTRACTING FORMATIONS OF MINERAL RESOURCES | 2005 |
|
RU2295039C1 |
METHOD OF MINING OF SALINE DEPOSITS | 2002 |
|
RU2209971C1 |
METHOD OF ERECTING MAN-MADE PILLAR WHEN WORKING SLOPING ORE BODIES AND ROD FOR ERECTING MAN-MADE PILLAR | 0 |
|
SU1004640A1 |
METHOD FOR OPEN-UNDERGROUND DEVELOPMENT OF FLAT-LYING FORMATIONS | 2019 |
|
RU2715503C1 |
METHOD FOR DEVELOPING POWERFUL STEEPLY DIPPING ORE BODIES WITH GOAF STOWING | 2023 |
|
RU2810041C1 |
METHOD FOR COMBINATION MINING OF GENTLY SLOPING SEAMS | 0 |
|
SU1668667A1 |
Authors
Dates
2005-03-27—Published
2002-12-15—Filed