FIELD: mining industry.
SUBSTANCE: method includes opening deposit of mineral resource along its length, extraction of opened rocks in shelves, forming on one of the portions of deposit of forward extracted space reaching planned bottom, moving rocks to external dumps and into extracted space, processing and transporting of mineral resource. Deposit extraction is performed in two directions - perpendicularly to length of deposit with deepening and along length to quarry bottom, while volume of extraction of mineral resource along length is increased and volume of extraction of resources perpendicularly to length is proportionally decreased.
EFFECT: higher efficiency.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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| METHOD FOR MINING STEEP AND INCLINED DEPOSITS | 1996 |
|
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|
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| METHOD OF COMBINATION WORKING OF ADJOINING SLOPING SEAMS | 0 |
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