FIELD: mining.
SUBSTANCE: method comprises operations on creation of ice wall along the mining limits will include, marking on the face plane of cut shotholes, and also rows of outer, the pre-boundary and boundary shotholes located along circles. The centre of radius of circles is located in the centre of the plane of the mine face. The cylindrical shotholes and the shots with profile cuts are drilled, the cut, outer and pre-boundary row shotholes are charged with explosives with their subsequent detonation. The shotholes with profile cuts are drilled out in the pre-boundary row, the centres of shotholes of the pre-boundary row are placed on the radius, common with the centres of shotholes of the pre-boundary row. The distance between these centres is selected no more than 2.5-3.0 values of diameter of shotholes of the boundary row.
EFFECT: invention allows to improve security of the ice wall.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DRIVING OF VERTICAL MINE SHAFTS IN FLOODED UNSTABLE ROCKS | 2014 |
|
RU2558085C1 |
| METHOD OF SINKING OF VERTICAL MAIN SHAFTS OF UNSTABLE AND WATERFLOODED ROCKS | 2013 |
|
RU2534274C1 |
| METHOD OF CYCLIC SINKING OF VERTICAL MINE SHAFTS AND DEVICE FOR ITS IMPLEMENTATION | 2014 |
|
RU2547851C1 |
| METHOD FOR DRIVING MINE WORKINGS | 1989 |
|
SU1748483A1 |
| METHOD OF DRIVING A HORIZONTAL MINE WORKING | 0 |
|
SU1751310A1 |
| METHOD AT MINE WORKING THROUGH BURST-DANGEROUS SEAMS AND ROCKS | 0 |
|
SU1765462A1 |
| PROCESS OF DESTRUCTION OF ROCKS WITH DRIVING OF WORKING IN THEM | 1992 |
|
RU2006581C1 |
| METHOD FOR SINKING VERTICAL WELL BORES AND CORRESPONDING EQUIPMENT | 2015 |
|
RU2613999C2 |
| DRIVING OF MINE WORKINGS BY DRILLING AND BLASTING | 1989 |
|
SU1743255A1 |
| METHOD FOR DRIVING UNDERGROUND WORKING CLOSE TO OUTBURST-RISKY ROCK MASS | 1992 |
|
RU2094613C1 |
