FIELD: mining industry.
SUBSTANCE: method includes dividing a level on hexahedral sections of upwardly elongated shape and is prepared by driving of field backup drift. From drift below each section shafts are driven, from which along mineral resource ascending shafts are drilled. For drilling chambers deposits by wells, sub-level drift is driven along mineral resource, access to which is provided by driving field sub-level drift and shafts. Outlet of extracted rock is performed through ends of shafts. After letting out rock from all sections ceiling beam is brought down and also let out through ends of shafts.
EFFECT: lower laboriousness, lower costs, higher efficiency, higher personnel safety.
2 dwg
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| METHOD OF MINING THICK DEPOSITS | 0 |
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RU2502872C1 |
