DEVELOPMENT METHOD OF ORE BODIES Russian patent published in 2009 - IPC E21C41/22 

FIELD: mining engineering.

SUBSTANCE: invention relates to mining engineering, particularly to development of horizontal and weakly-inclined ore bodies by underground mining. Development method of ore bodies 1 includes separation of block on chambers, execution in bottom part of chamber of cutting-down space and ore-receiving manufactures, layerwise dislodging of ore by radial holes set 12, drilled in ore massif from inclined boring rising 5 with simultaneous delivery of ore by explosive force into ore-receiving manufactures 11, stowage 9 of chambers after its working-off. Dislodging of ore is implemented on stowage 9, and angle of slope d_s of stowage is accepted equal to 18-45° to horizontal line, herewith chamber's height is accepted equal to from 8 up to 20 m, and inclined length of chambers l_k is calculated by formula.

EFFECT: invention provides expansion of range of application, reduction of laboriousness of operations implementation of method, improving of productivity of block at the period of stoped excavation.

5 ex, 2 dwg