METHOD FOR DEVELOPING HORIZONTAL AND LOWER ORE BODIES OF AVERAGE CAPACITY Russian patent published in 2018 - IPC E21C41/22 

FIELD: mining.

SUBSTANCE: how to develop horizontal and inclined orebody medium power under-level collapse involves workings: delivery of Horta, drilling entries, separating the ore body, shipping arrivals, dividing into partitions the panel ventilation rebelling, and also capable to cut layers of ore fans wells drilled from drilling entries, onto the clamping medium and the release of the beaten off place ore-face scheme simultaneously through pins and drilling loading races. As the drilling workings, the drifts of the release horizon are used. Capable to cut ore sections, having the form of parallelepiped, exercise ahead of refining of partitions in the center pane, providing a taper-/wedge-in terms of the shape of the front of mining, defines temporary resistance of overlapping rocks above the recoverable partitions and an increase in the release points for ore beaten off the Central Panel, up to three, for the rest of the panels-up to two. The height of the section is assumed to be equal to the thickness of the deposit, the width of the section is assumed to be equal to the width of the panel, which is determined from the average diameter of the ore flow at the end outlet, 8 m, the thickness of the section is taken in accordance with the critical height of the discharge ellipsoid, defined as half of the section height.

EFFECT: invention makes it possible to increase the efficiency of the technology by reducing the amount of tunnelling work and achieving high-quality indicators and completeness of extracting ore from the bowels while working out horizontal and gentle deposits with a capacity of 10-15 m.

2 cl, 3 dwg