FIELD: mining.
SUBSTANCE: used in underground mining of flat coal seams. The method for carrying out mining operations when developing flat coal beds includes coal cutting, primary fastening of the mine workings with anchors of the first stage and its subsequent strengthening with additional anchors of the second stage. The installation of the first stage anchor support is carried out simultaneously with the re-tensioning of the roof and sides of the excavation using metal lattice. At the second stage, injection strengthening of the excavation sides is carried out with polymer resins to a depth not less than the width of the zone of the limiting state of coal in the excavation side.
EFFECT: increasing the drifting rate and the safety of work during intensive mining of flat coal beds.
1 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR UNDERGROUND DEVELOPMENT OF FLAT COAL BEDS PRONE TO SPONTANEOUS IGNITION | 2019 |
|
RU2726752C1 |
| METHOD OF DRIVING MINE WORKINGS IN MINING OF FLAT-LYING COAL SEAMS | 2000 |
|
RU2183746C2 |
| METHOD OF LAYER MINING OF THICK FLAT COAL BED | 2012 |
|
RU2490458C1 |
| METHOD OF THICK FLAT COAL BED DEVELOPMENT | 2007 |
|
RU2354829C1 |
| METHOD OF OPEN UNDERGROUND DEVELOPMENT OF THICK FLAT COAL BED | 2010 |
|
RU2435956C1 |
| OPEN UNDERGROUND DEVELOPMENT METHOD OF MEDIUM STEEP COAL BED | 2010 |
|
RU2436953C1 |
| METHOD OF MINING FLAT AND INCLINED COAL SEAMS | 2000 |
|
RU2178526C1 |
| DEVELOPMENT METHOD OF THICK STEEP COAL BED | 2010 |
|
RU2436955C1 |
| METHOD FOR OPEN-UNDERGROUND MINING OF THICK FLAT COAL BED | 2011 |
|
RU2490456C1 |
| SHAFT-SINKING COMPLEX | 1990 |
|
RU2006584C1 |
