FIELD: mining engineering.
SUBSTANCE: method involves drilling rows of parallel contiguous wells at a distance between them, determined depending on charge diameter, detonation characteristics of powdered charged, physical and technical properties of massif, charging wells and blasting. Distance between rows of two parallel contiguous wells is determined from the mathematical expression taking into account friction, rock pressure, fracture index in rock massif, and effect of elastic reaction of massif from the explosion of two parallel contiguous charges.
EFFECT: obtaining a given degree of cracking of cracky stressed rock massif in explosion of two parallel contiguous power charges.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| ORE BODY MINING METHOD | 2016 |
|
RU2618541C1 |
| METHOD FOR OBTAINING THE PRESET DEGREE OF CRUSHING OF CRUMBLING ROCK MASS AT GROUP BLASTING OF DEEP-HOLE EXPLOSIVE CHARGES | 2002 |
|
RU2239783C2 |
| DRILLING-AND-BLASTING METHOD OF MINE WORKINGS IN STRESSED FRACTURED ROCK MASSES | 2011 |
|
RU2502045C2 |
| METHOD FOR OBTAINING THE PRESET DEGREE OF CRUSHING OF CRUMBLING ROCK MASS BY A BLAST | 2003 |
|
RU2239784C1 |
| METHOD FOR OBTAINING A PRESET CRUSHING RATIO OF FISSURED MOUNTAIN MASS AND THE REQUIRED COEFFICIENT OF HEADING ADVANCE PER ROUND TO SHOT HOLES LENGTH RATIO | 2010 |
|
RU2442957C2 |
| METHOD OF UNLOADING OF OUTBURST-PRONE ROCK MASS REGIONS BY BLASTING | 2001 |
|
RU2210671C2 |
| METHOD OF CUT-HOLE FORMATION | 2007 |
|
RU2366891C1 |
| METHOD FOR SEAM DAMAGE OF CRACKED ROCKS | 2011 |
|
RU2485438C1 |
| METHOD FOR DRIVING OF RAISES WITH ROCK BREAKING BY DEEP-HOLE CHARGES | 2003 |
|
RU2271513C2 |
| METHOD OF CUT-HOLE FORMATION | 2007 |
|
RU2366890C1 |
