| Issue |
E3S Web Conf.
Volume 548, 2024
X International Conference on Advanced Agritechnologies, Environmental Engineering and Sustainable Development (AGRITECH-X 2024)
|
|
|---|---|---|
| Article Number | 08024 | |
| Number of page(s) | 6 | |
| Section | Environmental Engineering, Mining and Soil Treatment Technology | |
| DOI | https://doi.org/10.1051/e3sconf/202454808024 | |
| Published online | 12 July 2024 | |
Assessment of contour deformations of reused mine workings
1 Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences, Moscow, 111020, Russia
2 Joint-Stock Company «Vorkutaugol», Vorkuta, 169908, Russia
3 Federal State Budgetary Educational Institution of Higher Education «Bauman Moscow State Technical University», Moscow, 105005, Russia
4 National University of Science and Technology «MISiS», Moscow, 119049, Russia
* Corresponding author: yskorochkin@mail.ru
The paper describes studies to assess the impact of high-intensity mining of flat-lying coal seams in difficult mining and geological conditions on the stability of reused development workings. A scheme for computer modeling of changes in the stress-strain state of a layered carbon rock mass, including development workings, at different positions of the working face is proposed. For the conditions of one of the operating mines of the Pechersk coal basin (Komi Republic, Russia), numerical experiments were carried out using the finite element method in the MIDAS / GTS NX software package. To describe changes in the geomechanical state of the described mining system, the Coulomb–Mohr criterion was used. The results of numerical studies made it possible to estimate the displacement values of the boundary areas of the development mine workings as the working face advances. The obtained estimates are confirmed by data from mine instrumental observations.
© The Authors, published by EDP Sciences, 2024
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