| Issue |
E3S Web Conf.
Volume 109, 2019
International Conference Essays of Mining Science and Practice
|
|
|---|---|---|
| Article Number | 00111 | |
| Number of page(s) | 9 | |
| DOI | https://doi.org/10.1051/e3sconf/201910900111 | |
| Published online | 09 July 2019 | |
Mathematical model of the cracking process in the coal-rock massif under hydrodynamic impact
1
Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, 49005, Dnipro, Simferopolska Str., 2a, Ukraine
2
National Technical University Dnipro Polytechnic, 49005, Dnipro, Dmytra Yavornytskoho Ave., 19, Ukraine
* Corresponding author: VVVlasenko@nas.gov.ua
The physics of hydrodynamic impact (HDI) is in the softening of the coal seam due to the generation of alternation stress in it. Stress is carried out due to injection and discharge of fluid into the coal seam in the filtration mode. The mathematical model of the processes occurring in the coal massif under HDI was developed. The model allows to determine the nature of the coal destruction in forward and inverse filtering of fluid in the massif. Cracking in the process of fluid filtration is achieved while simultaneously fulfilling two criteria: power and energy.
© The Authors, published by EDP Sciences, 2019
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