Issue |
E3S Web Conf.
Volume 326, 2021
International Conference on Innovations, Physical Studies and Digitalization in Mining Engineering 2021
|
|
---|---|---|
Article Number | 00008 | |
Number of page(s) | 5 | |
DOI | https://doi.org/10.1051/e3sconf/202132600008 | |
Published online | 24 November 2021 |
Investigation of Alardinskaya mine coal bumps causes using computer simulation of rock massif stress conditionals
Saint Petersburg Mining University, 2, 21 st Line, Vasilievski Island, Saint-Petersburg, 199106, Russia
* Corresponding author: Sidorenkoaa@mail.ru
The purpose of the paper was to identify the causes of rock bumps that occurred at the Alardinskaya mine (Russia) in 2011. The research was carried out using the finite element method. The developed three-dimensional model of the rock mass included a coal seam, rocks bedding above and below, goaf, and a system of local preparatory workings. The situation that arose immediately before the first rock burst was modeled during the research - when the longwall crossed a diagonal entry. The performed investigations enabled the authors to make a conclusion about a high danger of using technological schemes for the development of seams by longwalls leaving pillars that have a width less than the length of the support pressure zone, especially due to diagonal entries. As a safe technology for the longwall development of seams prone to rock bursts, it is recommended to apply a technological scheme with the abandonment of wide barrier pillars and four preparatory workings in each section, which has proven itself in the processing of rock bump hazardous seams in the state of Utah (USA).
© 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.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.