FIELD: mining, in particular, devices for reinforcing the artificial fill mass in layer extraction of coal seams downward with cast cementing fill. SUBSTANCE: device includes reinforcement with rods and made in the form of beams installed transversely in working, and rods with bent ends, while some bent ends of rods joined with beams. EFFECT: higher efficiency.
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR MINING OF THICK COAL SEAMS | 1993 |
|
RU2069751C1 |
ARTIFICIAL CEILING STRUCTURE OF STOPING WORKING | 0 |
|
SU950923A1 |
METHOD OF MINING THICK STEEP SEAMS | 0 |
|
SU1544975A1 |
METHOD OF HYDRAULIC MINING OF STEEP THICK SEAMS WITH SOLID HARDENING GOBBING | 1993 |
|
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METHOD FOR ROOF CONTROL IN MINING COAL SEAMS | 1992 |
|
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METHOD OF INCLINED SLICING OF THICK STEEP COAL SEAM | 0 |
|
SU1705569A1 |
METHOD FOR MINING THICK STEEPLY DIPPING SEAMS BY HYDRAULIC BREAKING WITH CAST SELF-CEMENTING FILL | 1993 |
|
RU2069752C1 |
METHOD OF DIRECTING ARTIFICIAL PILLARS | 0 |
|
SU909173A1 |
METHOD FOR COMBINATION MINING OF GENTLY SLOPING SEAMS | 0 |
|
SU1668667A1 |
METHOD FOR MINING OF GENTLY DIPPING COAL SEAMS | 1991 |
|
RU2018673C1 |
Authors
Dates
1997-12-20—Published
1995-11-08—Filed