METHOD FOR REINFORCEMENT OF MINES Russian patent published in 2013 - IPC E21D11/12 

FIELD: mining.

SUBSTANCE: method for reinforcement of mines includes the following: in a reinforced part of the mine into a deck (7), installed on a working deck (5) on runs (6), pneumatic balloons (8 and 9) are arranged, where a beam (3) and braces (4) are placed. For this purpose runs are moved to the mine bottomhole, and in individual stand (11) is installed. Compressed air is supplied to pneumatic balloons (8), and beams are lifted with a brace to the level of beams of permanent support, and the brace is put on the permanent support frame. Then a thrust is created between beams of the support and mine roof, simultaneous supply of compressed air into pneumatic balloons (8 and 9). Stands are fixed to beams, and the brace is laid along the perimeter of the mine. Afterwards the pneumatic balloons are unloaded, the stand is removed, and runs with the working face, deck and pneumatic balloons are moved to the reinforced space of the mine.

EFFECT: increased efficiency and safety of preparatory mines reinforcement.

6 dwg