UA28516 METHOD FOR DETERMINATION OF STABILITY FACTOR OF ROCK MASSIF.

Method for determination of stability factor of rock massif includes determination of coefficient of friction of rocks, measurement of acoustic emission simultaneously at large areas with use as additional loads of explosions, measurement of decay time for acoustic emission after explosion to its phone level and determination of stability factor of rock massif by design formula. Measurement and registration of acoustic emission is performed simultaneously in prisms of support and active pressure of rock massif of pit side, one preliminarily determines coefficient of friction of rock massif at surfaces of its release in prisms of active pressure in body of ledge slants and at angles to release surface in support prisms. As additional loads one takes to account effect of technological exposures, motion of mine transport at berms of pit side and displacement of front of mining works to designed boundaries, data are transferred from geophons though wireless network to processing server, one measures decay time for acoustic emission after technological explosions and additional loads on rock massif simultaneously in prisms of active pressure and in support prisms, and after that one determines stability factor of rock massif.

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