| Issue |
E3S Web Conf.
Volume 60, 2018
Ukrainian School of Mining Engineering
|
|
|---|---|---|
| Article Number | 00001 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/e3sconf/20186000001 | |
| Published online | 16 October 2018 | |
Maintenance of reusable mine workings during the augering mining of coal seams
1
National Mining University, Department of Underground Mining, 19 Yavornytskoho Ave., 49005 Dnipro, Ukraine
2
LLC “DTEK Energy”, Department on Coal Production, 57 LvaTolstoho St, 01032 Kyiv, Ukraine
* Corresponding author: kovalevska_i@yahoo.com
The augering mining of thin and very thin coal seams has been proposed for using the efficiency of this task, related to the stability of reusable mine workings. The interrelation has been established and optimized between the support loading parameters in the extraction working during the augering mining of thin and very thin coal seams with the stress-strain characteristics of the protective monolithic strip of variable rigidity. The strength properties of sand-cement stone for the erection of rigid and yieldable parts of the protective strip are studied. The regression equations are obtained, which allow to determine the rational force, deformation and geometric parameters of the “support – protective strip” system elements during the extraction workings maintenance.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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