Abstract
The paper deals with the research of fluid impulse injection on a hydraulic stand and the results of mining-experimental studies of cavitation fluid flow dynamic parameters. The defined reliance between frequency and amplitude of self-oscillations on pressure of the liquid boosting in the filtration part of well simulator are considered. It is determined that the regime of periodic disruptive flow of fluid occurring in the filtration part of the well has the following stages: development, constant and damped cavitation. The active stage of hydroimpulsive loosening of outburst-prone coal seams and working ranges of hydroimpulsive action device according to the double amplitude and frequency of self-oscillations of fluid pressure in the well are established.
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