FIELD: underground mineral mining. SUBSTANCE: drilled before excavation of ore in chamber fore-breast are holes at angle to horizontal to contact roof rocks, charged with explosives and squaller is effected. In course of chamber working, remaining layer rocks in worked zone are undercut and caved by combine cutting member. Cycle is repeated after combine advance through worked out zone. EFFECT: higher efficiency. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MINING THICK SALT OUTBURST-PRONE SEAMS WITH COMPLICATED HYPSOMETRY OF THEIR OCCURRENCE | 1991 |
|
RU2015329C1 |
| CONTROL METHOD OF POORLY CAVING ROOF AT ENTRY OF MECHANISED COMPLEX TO REMOVAL CHAMBER | 2011 |
|
RU2472936C1 |
| METHOD OF PREVENTION OF SUDDEN OUTBURSTS OF SALT AND GAS | 1993 |
|
RU2090757C1 |
| METHOD OF WORKING THICK GENTLY SLOPING FOLDED CARNALLITE BEDS | 0 |
|
SU1705570A1 |
| METHOD TO MANAGE HARD-TO-COLLAPSE ROOF WHEN MINING GAS-BEARING BEDS IN LONG FACES WITH MECHANICAL COMPLEXES | 2011 |
|
RU2471989C1 |
| CONTROL METHOD OF POORLY CAVING ROOF AT MINING OF GAS-BEARING FORMATIONS IN FACES WITH MECHANISED COMPLEXES | 2011 |
|
RU2472931C1 |
| METHOD FOR DEVELOPMENT OF STEEP IMPACT-RISKY SEAMS | 1995 |
|
RU2083832C1 |
| METHOD AND DEVICE FOR CONTROLLING CEILING AND PREPARING MASSIVE BEDS OF MINERAL RESOURCES FOR EXTRACTION BY REMOVING THEM FROM MASSIF BELOW THE CEILING | 2002 |
|
RU2253017C2 |
| METHOD FOR SELECTIVE DEVELOPMENT OF UPLAND MINERAL ESTATE RESERVES | 2010 |
|
RU2453700C2 |
| METHOD FOR MINING THICK SEAMS OF POTASSIUM-MAGNESIUM SALTS | 1996 |
|
RU2110687C1 |
