METHOD FOR DRILLING OF MINE WORKING AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC E21C25/16 E21B7/04 

FIELD: mining.

SUBSTANCE: group of inventions relates to mining industry, namely to methods of driving underground mines and devices for their implementation during preparation of coal beds to extraction groove. In method of driving mine opening to pre-drilled well, auger tool is thrust centered in front of face bottomhole destruction coaxially with boom axis of selective cutter-loader and parallel with lengthwise axis of working with possibility of cyclic axial movement, rotation and fixation, incrementally, inter-sectional cutter is periodically connected and disconnected from the reverse radial bit, which is also periodically moved away from the bottomhole at a distance not less than the required depth of the advanced well, then through drilling machine drilling and drilling of advance well is performed, in which auger tool is cyclically rotated and moved to face in axial direction, cyclically stopped, and tunneling combine is cyclically moved to the bottomhole at the distance of not less than the required depth of the leading well, then the auger tool is divided into two composite sectional parts, the first of which is constantly left in the advance well, and the second one is periodically extracted by the heading machine, forming in it free working space along the length for several cycles of destruction of the bottomhole.

EFFECT: increased efficiency of the process of pre-well drilling, reduced power consumption of destruction processes of the bottomhole massif and dustiness of the working space, increased rate and orientation of the mine workings.

10 cl, 22 dwg