| Issue |
E3S Web Conf.
Volume 168, 2020
II International Conference Essays of Mining Science and Practice
|
|
|---|---|---|
| Article Number | 00059 | |
| Number of page(s) | 12 | |
| DOI | https://doi.org/10.1051/e3sconf/202016800059 | |
| Published online | 06 May 2020 | |
Complex spectral-acoustic monitoring of the state of fluid-saturated coal-rock mass
1
Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, 49005, Dnipro, Simferopolska Str., 2a, Ukraine
2
Institute of Innovative Techniques, EMAG, 40-189, Katowice, Leopold Str., 31, Poland
* Corresponding author: igtm.pilipenko@gmail.com
Subject of the research is the methods for monitoring properties and state of coal-rock massif. This work is an experimental validation of the studied parameters of acoustic emission occurred during destruction of the roadway roof. Elements of the theory of acoustic emission control, research methods, results and experimental studies of the fluid-saturated rock destruction were studied. In this article, methods of studying and interpreting the results of geophysical observations of the process of the roof rock stratification and fall at caving of the undermined rocks at a complex stressed state are presented. Biseds, approaches to solving the problems of managing and controlling the dynamics of changes in the stress-strain state of the undermined fluid-saturated coal-rock massif based on factors of autocorrelation between the seismic-acoustic phenomena occurred over time are described. Experimental grounds are given to the complex control methods with determination of the level of disintegration by the Fourier estimation of the amplitude-frequency and amplitude-time spectra.
© The Authors, published by EDP Sciences, 2020
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