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, Issue 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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