ROCK BURST METHOD, AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC E21C37/06 

FIELD: mining.

SUBSTANCE: method involves drilling in the plane of the supposed burst of bore pits, sealing of their mouth, creation in bore pits of burst static load by supplying to them of plastic substance under pressure. Bore pits are drilled till their axes cross, and tubes with one longitudinal slot, which are filled with plastic substance and which have outside diameter that is equal to diameter of bore pits, are arranged in them. Slot of each tube is directed towards the supposed burst. The device includes the first tube with a longitudinal slot, which is filled with plastic substance, at one end of which the first plug is installed, and on its other end there screwed is the first shell having a central hole with thread, where a screw with a handle is screwed. It is equipped with the second tube with a longitudinal slot, which is filled with plastic substance, at one end of which the second plug is installed, and on its other end there screwed is the second shell having a central hole. A rod with stepped thinning going out of the second tube through the central hole in the second shell is inserted in the second tube. The first and the second tubes are not attached to each other.

EFFECT: improving efficiency owing to creating a crack with specified boundaries within the zone restricted with bore pits.

5 cl, 1 dwg