| Issue |
E3S Web Conf.
Volume 177, 2020
XVIII Scientific Forum “Ural Mining Decade” (UMD 2020)
|
|
|---|---|---|
| Article Number | 01004 | |
| Number of page(s) | 8 | |
| Section | Mining | |
| DOI | https://doi.org/10.1051/e3sconf/202017701004 | |
| Published online | 08 July 2020 | |
Theoretical basis for calculation of the quarries sides for collapse
Ural State Mining University, 620144, Ekaterinburg, Russia
* Corresponding author: zhabkoav@mail.ru
The paper is devoted to the development of a mathematical apparatus for cal-culation of the quarries sides for collapse. The relevance of the paper lies in the fact that today there are no methods for calculation of the quarries and open-pits sides for collapse, however, the collapse of the sides or ledges in quarries is the most dangerous and unpredictable process. The main idea of the paper is to use, when calculating the collapse, not a strength criterion, but a criterion that describes the elastic limit of rocks. According to modern con-cepts, the formation of extremely stressed zones in the entire loaded region begins exactly at the elastic limit, in contrast to the ultimate strength, upon reaching which a single fracture surface is formed. Thus, the ultimate strength should be identified with landslide phenomena, and the elastic limit with the collapse of the rock mass. Methods of mathematical analysis and continuum mechanics -method of ultimate stress state, are widely used in the paper.
© The Authors, published by EDP Sciences, 2020
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