FIELD: mining.
SUBSTANCE: method involves driving of underground workings from open developed open-pit spaces, stowing of the developed space at extraction of pillars by means of underground work equipment. First, mine rock mass is strengthened under facilities by means of piles arranged along the surface area of surface facilities in inclined wells and shaped by filling of the wells with a hardening solution with installation of reinforcement elements in the centre of piles. Then, pillars are extracted at simultaneous stowing of the developed underground space with hollow rocks with laying on their surface of a strengthening coating.
EFFECT: improving reinforcement efficiency of mine rock massif in a zone of possible movement at extraction of ores, which provides their steady state and reliability of arrangement of surface facilities.
1 ex, 1 tbl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REFINEMENT OF DEEP KIMBERLITE QUARRIES | 2017 |
|
RU2661769C1 |
| METHOD FOR DRIVING OF INCLINED SHAFTS AND HORIZONTAL UNDERGROUND MINES IN CRYOLITHOZONE CONDITIONS | 2019 |
|
RU2698752C1 |
| METHOD FOR DEVELOPMENT OF STEEPLY DIPPING ORE BODIES LIMITED IN PLAN VIEW | 2021 |
|
RU2761791C1 |
| METHOD FOR COMBINED DEVELOPMENT OF MINERAL DEPOSITS | 2009 |
|
RU2400625C1 |
| METHOD OF WORKING ORE RESERVES BEHIND CONTROUR IN QUARRY NEAR-EDGE AREAS | 0 |
|
SU1104274A1 |
| METHOD FOR EXPLOITATION OF STEEPLY DIPPING ORE BODIES AND METHODS FOR MINING, PROCESSING AND BENEFICIATION OF COPPER AND/OR COPPER/ZINC, AND/OR ZINC, AND/OR SULFUR ORES POSSIBLY CONTAINING GOLD, SILVER AND OTHER PRECIOUS AND RARE-EARTH ELEMENTS OF STEEPLY DIPPING ORE BODIES | 1995 |
|
RU2065053C1 |
| METHOD FOR WORKING-UP IN QUARRY BANKS | 0 |
|
SU1776794A1 |
| METHOD OF MINERALS EXCAVATION FROM PILLARS | 2008 |
|
RU2365753C1 |
| METHOD OF DEVELOPMENT OF LOW-COMMODITY KIMBERLITE PIPES | 2014 |
|
RU2568654C1 |
| METHOD FOR DEVELOPMENT OF DEEP HORIZONS OF DIAMOND-MINING PITS IN CRYOLITHOZONE CONDITIONS | 2019 |
|
RU2698750C1 |
