METHOD OF MINE WORKING Russian patent published in 2008 - IPC E21F5/00 E21C41/18 

FIELD: mining.

SUBSTANCE: method of mine working can be implemented at developing of mildly sloping or inclined shallow and medium coal beds. The said method includes development of mining level by means of transport and ventilation driving with unloading platforms on both sides of a drift. Perpendicularly to the drift there are made stables which are transformed into unloading platforms by means of boring of unloading boreholes advancing the drift; the said unloading boreholes are separated between themselves with virgin coal. Further entry driving is carried out up to the end of unloading boreholes in massif, free from the influence of underground pressure with unloading platforms. At that rock from drift top breaking is piled into the unloading boreholes, after what an operation cycle is repeated.

EFFECT: reduction of coal losses in massifs, reduced dilution of coal with rocks caused by driving and repair of drifts, acceleration of preparing and completion of mining level, additional production out of boreholes, and providing repeated and excluding repair usage of development excavations.

1 dwg