METHOD FOR DEVELOPMENT OF MINOR INCLINED AND SLOPING ORE LODES Russian patent published in 2010 - IPC E21C41/22 

FIELD: mining.

SUBSTANCE: method involves performance of preparatory development operations, arrangement of an underlying transportation head (UTH), erection of the main and the additional portable sectional partitions, boring, loading an explosive into ore and rock holes, their explosion in four adjacent cuts within a single cycle, formation of an overlying sublevel (OS) for the ore lode extension with the bed and cover rocks slashed in such a way that the overlying sublevel bottom mates the underlying extraction space soil. Then follows relocation of broken ore to the underlying transportation head, residual broken ore cleanup with a high-pressure water jet, broken ore shipment, sectional partitions dismantlement and relocation by a distance equal to a drilling run per cycle and broken ore stacking within the underlying extraction space.

EFFECT: improved efficiency of development of minor inclined and sloping or lodes with the help of self-propelled mining equipment due to enhanced productivity of broken working combined with reduction of losses and ore dilution.

3 cl, 6 dwg