METHOD OF FILLING HOLE UNDER ANCHOR, DRILLED IN ROOF OF MINE WORKING CARTRIDGES WITH RESIN Russian patent published in 2016 - IPC E21D20/00 

FIELD: mining.

SUBSTANCE: invention relates to a method of filling drilled bore pits for anchors installed in the roof of mine with resin cartridges. At the first stage a blast-hole in the roof of mine is made using pneumatic machine for mounting anchor bolting and the drilled bore pit is cleaned by water or by air blowing. Using telescopic tube in combination with multisection casing pipes. Telescopic tube is drawn on the required height in compliance with the depth of hole drilled in the roof; upper hole of the telescopic tube is fitted in drilled bore pit at certain depth, set of cartridges filled with resin is placed in series into telescopic tube through the lower hole of telescopic tube and are pushed up to the deepest position within the drilled hole along the whole of telescopic tube by means of a push rod. Cartridges with resin are pressed upwards and stirred, so that cartridges with resin are get secured by fixing blast hole walls made in rock thickness. Then, push rod is removed from the telescopic tube; telescopic tube is removed from the drilled hole; and finally an anchor is inserted for mixing cartridges.

EFFECT: technical result consists in improvement of efficiency of operation and increasing the drilling rate, thus providing safe and efficient operation in mine workings.

2 cl, 1 dwg