Skipochka S. Physico-technical basis of mechano-electrical method of controlling the properties and diagnostics of stress-strain state of rockmass

The thesis is devoted to the development of a highinformative method of the mining geophysics on the basis of mechano-electrical effects of rocks. A complex of researches of mechano-electrical effects of stress-strained rocks has been made. Values of modules have been obtained and a classification of rocks aссording to their mechano-electrical properties has been developed. A physical explanation of obtained dependences of mechano-electrical effects of rock on water contents, porosity, fluid type and its concentration, and temperature has been given. Dependences of the amplitude, phase and spectral density of the mechano-electrical effects on the value and the character of rock deformations, compressive and bulking factor have been determined. Analytical dependences of parameters of the mechano-electrical method on properties and the state of the rockmass have been obtained. Methods and means of a realization of the mechano-electrical method in-situ underground have been developed. A possibility of an active changing of the strength properties of superstressed rock by means of an external electrical field have been found. One more element to the mechanism of initiating the gas-dynamic phenomenon in coalmeasure rocks has been offered to use. The main results of the work have been realized in the form of testing devices and technical documents with implementation in a number of mining enterprises