FIELD: mining.
SUBSTANCE: benches are developed by pillar and peripheral splits, wells are drilled within the limits of peripheral split, charged and exploded, peripheral split is developed as advanced relative to pillar split, main and auxiliary wells are drilled in massif of pillar split as horizontal along pillar, arranging a row of auxiliary wells higher than the middle of bench, wells are charged by their stemming with low-density material on both sides and exploded.
EFFECT: reduced amount of rocks dropped to lower arranged horizons, decreased volumes of additional handling related to lifting of exploded rocks dropped at lower arranged benches to the horizon of their primary location, increased efficiency of mining works.
1 ex, 2 tbl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ROCKS WORKING IN OPENCAST RECONSTRUCTION | 2001 |
|
RU2192544C2 |
| METHOD OF SLOPING HIGH BENCHES ON OPENCAST LIMITING CONTOUR | 2000 |
|
RU2178079C1 |
| METHOD OF DRILLING AND BLASTING OPERATIONS ON LIMIT CONTOUR OF FLANKS OF PITS AND GROOVES | 1990 |
|
SU1764398A1 |
| METHOD OF CARRYING OUT DRILLING AND BLASTING WORK AT QUARRY RECONSTRUCTION | 0 |
|
SU669054A1 |
| PROCESS OF ARRANGEMENT OF HIGH WALLS IN OUTLINE OF STRIPPING | 2002 |
|
RU2224110C1 |
| METHOD FOR MINERAL OPENCAST MINING | 0 |
|
SU1789701A1 |
| DEVELOPMENT METHOD OF KIMBERLITE DEPOSITS | 2008 |
|
RU2384706C1 |
| METHOD FOR BENCH MINING OF ROCK MASS IN STEEPLY DIPPING MARGINAL ZONE | 1987 |
|
RU1478774C |
| METHOD FOR BREAKING OF KIMBERLITIC ROCKS | 2006 |
|
RU2311609C1 |
| DEFINITION METHOD OF CONTENT OF EFFECTIVE COMPONENT IN IMPLODED MOUNTAIN MASS AT ITS EXCAVATION AT MOTIONS | 2008 |
|
RU2386032C1 |
