Issue |
E3S Web Conf.
Volume 280, 2021
Second International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2021)
|
|
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Article Number | 08018 | |
Number of page(s) | 7 | |
Section | Sustainable Mining | |
DOI | https://doi.org/10.1051/e3sconf/202128008018 | |
Published online | 30 June 2021 |
Determination of the parameters of local reinforced zones under the protection means
1 Donetsk National Technical University, 85300, Pokrovsk, Shybankova Sq., 2, Ukraine
2 KAZ Minerals, 050020, Almaty, Omarovoi, 8, Kazakhstan
3 Satbayev University, 050013, Almaty, Satpayeva, 22a, Kazakhstan
* Corresponding author: serhii.nehrii@donntu.edu.ua
In order to develop effective measures to ensure the operational condition of the development workings behind the face in the conditions of soft footwall rocks, the construction of local reinforced zones under the protection means has been proposed. The presence of such zones allows transferring the current load deep into the massif and creating a stable foundation under the protective structure. The results of researches concerning establishment of rational parameters of local reinforced zones with application of the method of finite elements, the method of experiment planning and the method of statistical processing of these results have been presented. The empirical dependence of the subsidence of the local reinforced footwall under the protection means on their load, deformation characteristics of the local reinforced zone and host rocks, width of protection means, strength of soft underlying rocks and geometric dimensions of the zone has been determined. The relative indicator of efficiency of local strengthening of a footwall which is used for determining of rational parameters of a locally reinforced zone has been offered.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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