Vasyl Zberovskyi, Kostiantyn Sofiiskyi, Rishard Stasevych, Artem Pazynych, Jan Pinka, Marina Sidorova. The results of monitoring of hydroimpulsive disintegration of outburst-prone coal seams using ZUA-98 system

Details

Parent Category: Geo-Technical Mechanics, 2020

Category: Geo-Technical Mechanics, 2020, № 155

Geoteh. meh. 2020, 155, 173-180

https://doi.org/10.1051/e3sconf/202016800068

 

THE RESULTS OF MONITORING OF HYDROIMPULSIVE DISINTEGRATION OF OUTBURST-PRONE COAL SEAMS USING ZUA-98 SYSTEM

¹Vasyl Zberovskyi, ¹Kostiantyn Sofiiskyi, ¹Rishard Stasevych, ¹Artem Pazynych, ²Jan Pinka, ²Marina Sidorova

¹Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, ²Technical University of Kosice

Language: English

Abstract.

The paper represents the results of monitoring and evaluation of the efficiency of hydroimpulsive disintegration of outburst-prone coal seams in the stopes of development mine workings using a system of sound detecting facilities. Methods of acoustic emission control have been considered as well as the monitoring tasks to evaluate rock mass conditions before the procedure and after it inclusive of the results of sound accompaniment of hydraulic disintegration of the coal seam. It has been determined that the higher concentration of stresses within the rock mass is, the more efficient action of high frequency self-oscillations of cavitation transmitter is on both the fissuring and changes in gas-dynamic state of the coal seam. It has been recommended to apply a mode of impulsive fluid pumping under the conditions where coal seam is in the stress-strain state.

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