| Issue |
E3S Web Conf.
Volume 109, 2019
International Conference Essays of Mining Science and Practice
|
|
|---|---|---|
| Article Number | 00047 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/e3sconf/201910900047 | |
| Published online | 09 July 2019 | |
Laws of gas draining in the massif disturbed by mining operations
1
Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, 49005, Dnipro, Simferopolska Str., 2a, Ukraine
2
Private Joint Stock Company «DTEK Pavlogradugol», 51400, Pavlohrad, Soborna Str., 76, Ukraine
* Corresponding author: sakurnosov@gmail.com
A method for calculating gas permeability of the rock massif depending on its stress-strain state is presented. By using methods of the mine experimental studies, influence of mining operations in the adjacent long walls on intensity of gas release from the previously worked-out long-pillar was determined, as well as impact of the massif stress-strain state on efficiency of the drainage boreholes. Formulas were obtained for calculating coefficients of the impact of zones with static and dynamic abutment pressure on intensity of gas draining in the previously worked-out long-pillar.
© The Authors, published by EDP Sciences, 2019
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