FIELD: mining, particularly to prevent impacts during cutting of flat-lying seams with hardly caving roof.
SUBSTANCE: method involves exploring stratigraphic section and geological structure of seam sequence and enclosing rocks including bump hazardous seam to be excavated; determining spatial direction of endogenic fissures in roof of seam to be protected; selecting technological seam cutting scheme and breakage face advancing direction so that endogenic fissures in rock roof are oriented towards goaf and angle at breakage face line and said fissure system extension line meeting is 20°-40°.
EFFECT: increased safety of rock cutting.
3 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PROTECTION FROM ROCK BUMPS AND SUDDEN EMISSIONS | 2015 |
|
RU2599121C1 |
| METHOD OF MINING OF THICK INCLINED OUTBURST-PHONE SEAM | 1998 |
|
RU2143074C1 |
| METHOD FOR EXTRACTING FLAT-LYING AND INCLINED IMPACT-HAZARDOUS BEDS | 2005 |
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| METHOD FOR FILLING OF MINED-OUT SPACE DURING DEVELOPMENT OF GENTLY SLOPING BEDS WITH LONG PILLARS | 2020 |
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| COMPLEX METHOD OF PRELIMINARY DEGASSING OF WORKING COAL BED, WORKED-OUT AREA AND ACCOMPANYING BEDS AND CONTROLLED CAVING OF HEAVY ROOF | 2013 |
|
RU2540750C2 |
| METHOD OF FULL DEVELOPMENT OF GENTLY SLOPING COAL BEDS WITH POWER-DRIVEN SYSTEMS WITHOUT ANY PREPARATORY MINE WORKINGS | 2010 |
|
RU2444624C1 |
| METHOD OF SUPPRESSING DYNAMIC EFFECTS AT DEVELOPING COAL SEAMS | 1992 |
|
RU2034991C1 |
| GENTLY SLOPING COAL BED MINING METHOD | 2005 |
|
RU2284414C1 |
| METHOD FOR EXTRACTING SLOPING OR SLANTED SHOCK-HAZARDOUS LAYERS | 2002 |
|
RU2224890C1 |
| METHOD OF DEGASSING OF MINED-OUT SPACE | 2008 |
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RU2360128C1 |
