Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure
Patent
1982-11-01
1989-01-24
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Processes
Stabilizing underground structure
299 19, 405267, E21C 4100
Patent
active
047997389
ABSTRACT:
The mining method of this invention is particularly suitable for the underground extraction of large mineral deposits, wherein a subsidiary road is formed perpendicularly to the work face from which the mineral deposit is to be removed. A boundary subsidiary road is formed substantially perpendicularly to the subsidiary road, a first mine tunnel is formed by removing the mineral deposit from the work face along the subsidiary road until the boundary gate road is reached. Then the material around said first mine tunnel is collapsed to fill the same along the subsidiary road and the collapsed matter is consolidated along the subsidiary road. Finally a second mine tunnel is formed along the subsidiary road. The second mine tunnel can be horizontally or vertically adjacent to the first mine tunnel.
REFERENCES:
patent: 1004418 (1911-09-01), Griffith
patent: 1697788 (1929-01-01), Sinclair
patent: 4174135 (1979-11-01), Grenia
patent: 4268088 (1981-05-01), Price
patent: 4340254 (1982-07-01), Barsi et al.
Barsi Karoly
Dorombozi Laszlo
Forisek Istvan
Kis-Tamas Laszlo
Lukonits Otto
Bagnell David J.
Novosad Stephen J.
Tatabanyai Szenbanyak
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