FIELD: mineral mining. SUBSTANCE: polygon area to be prepared for mining is drilled with holes in which explosive charges and heat-forming reagent with pronounced dispersing effect, e.g., metal chlorides fusion cake, are placed. Water accumulation sump is constructed on the polygon area lower section and hydraulic needles are arranged on flanks through which water is supplied to blasted mass for thawing the rocks. Sump is constructed after blasting explosives in holes. EFFECT: higher efficiency. 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PERMAFROST ROCKS PREPARATION METHOD | 1991 |
|
RU2046952C1 |
| FROZEN ROCK PREPARATION METHOD | 0 |
|
SU1765416A1 |
| METHOD FOR PREPARATION OF FROZEN PLACER FOR MINING | 1991 |
|
RU2039273C1 |
| METHOD OF PREPARATION OF FROZEN LOOSE DEPOSITS FOR EXCAVATION | 1994 |
|
RU2100607C1 |
| METHOD FOR PREPARATION OF FROZEN PEATS IN MINING OF PLACER DEPOSITS | 1992 |
|
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| METHOD OF PREPARATION OF FROZEN ROCKS FOR EXCAVATION | 1994 |
|
RU2100606C1 |
| METHOD FOR PREPARING FROZEN ALLUVIAL DEPOSITS FOR EXCAVATION | 0 |
|
SU717940A1 |
| METHOD OF HOLE DRILLING IN FROZEN ROCKS | 1994 |
|
RU2111354C1 |
| DEVICE FOR MELTING AND DRYING FROZEN SOIL | 0 |
|
SU1760031A1 |
| CHARGE ES | 1989 |
|
SU1840801A1 |
