FIELD: mining, particularly to develop water-soluble mineral deposit deposited in enclosing impermeable rock bordering on flooded rock.
SUBSTANCE: method involves mining mineral salt reserves with cutting and/or drilling-and-blasting methods in chambers to impart naturally stable vault shape to chamber cross-section; cutting chamber by driving technological heading in upper chamber part so that the technological heading has convex curvilinear roof inscribed in the naturally stable vault, wherein the technological heading may comprise lining and has parameters providing long-tern stability thereof. Current chamber width and safety pillar base width are determined from mathematical expressions.
EFFECT: increased mining safety along with retention of mineral salt production level.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR EXTRACTING DEPOSITS OF WATER-SOLUBLE MINERAL RESOURCES | 2004 |
|
RU2254471C1 |
| METHOD OF MINING OF WATER-BEARING DEPOSITS OF WATER-SOLUBLE MINERALS | 1999 |
|
RU2163297C1 |
| METHOD FOR FLOODED WATER-SOLUBLE MINERAL DEPOSIT DEVELOPMENT | 2005 |
|
RU2280164C1 |
| METHOD FOR EXTRACTION OF MINERAL RESOURCES DEPOSITS | 2003 |
|
RU2249696C1 |
| PILLAR WORKING METHOD | 0 |
|
SU1793053A1 |
| METHOD FOR SECONDARY TREATMENT OF SALT BED | 2011 |
|
RU2468206C1 |
| METHOD OF MINING FLAT SEAMS AT ROOF CONTROL ON BAND PILLARS | 1994 |
|
RU2074959C1 |
| METHOD OF WORKING A SUIT OF ADJOINING GENTLY-SLOPING MINERAL SEAMS | 0 |
|
SU950915A1 |
| METHOD FOR CONTROL OF ROCK PRESSURE | 1995 |
|
RU2081316C1 |
| ECOLOGICALLY SAFE METHOD OF MINERAL SALT DEPOSIT MINING | 2001 |
|
RU2206744C1 |
