FIELD: mining.
SUBSTANCE: as per the first version, mine rock breaking method involves creation of a crack through the well and supply to it of fixative material mixed with putty. Crack is created with breaking boundary not protruding beyond bottom hole by displacement of mixture of certain volume from the well to the bed. Pipe is moved into the well and sealed in the section where mixture is available in the crack. Liquid is pumped into the gap between the pipe and walls of the well and putty is washed away from mixture by means of the above liquid through the zone between boundaries of mixture and crack and through the pipe. After putty is washed away from mixture, metal salt solution is supplied to the crack, which by means of chemical replacement reaction is deposited on fixative material and surface of crack till solid electrically conducting layer is formed. Then, the crack is electrically connected to receiving-transmitting system. As per the second version of the method, two cracks are created in one plane through two separate wells. The, the first and the second cracks are electrically connected to receiving-transmitting system. As per the third version of the method, after the crack (the first one) is created, as per the first version the well is deepened and the second crack is created, which is similar to the first one so that the first and the second cracks are in one and the same plane and have no electric contact between each other; after that, the first and the second cracks are electrically connected to receiving-transmitting system.
EFFECT: higher breaking efficiency of mine rocks owing to creating cracks with high electrical conductivity providing the possibility of transmitting and receiving the electromagnetic energy.
10 cl, 5 dwg
