Regularities of Stress State of Unsupported Working Occurring in a Layered Massif
| dc.contributor.author | Tiutkin, Oleksii L. | en |
| dc.contributor.author | Petrosian, Nataliia K. | en |
| dc.contributor.author | Radkevych, Anatolii V. | en |
| dc.contributor.author | Alkhdour, Ahmad M. | en |
| dc.date.accessioned | 2019-12-06T08:06:01Z | |
| dc.date.available | 2019-12-06T08:06:01Z | |
| dc.date.issued | 2019 | |
| dc.description | O. Tiutkin: ORCID 0000-0003-4921-4758; N. Petrosian: ORCID 0000-0003-0804-7500; A. Radkevych: ORCID 0000-0001-6325-8517; A. Alkhdour: ORCID 0000-0002-4148-5994 | en |
| dc.description.abstract | ENG: Abstract. The paper defines the regularities of stress state of unsupported working occurring in a layered massif. The relevance of the performed research is substantiated by the importance of determining the stresses of the contour of unsupported working when the elastic modulus of the matrix and the layer is varied. Since the application of analytic methods for this case is complex, we used a numerical finite element method, implemented in the SCAD. We developed a finite-element model of the above working, where the elastic moduli of the matrix and the layer varied greatly, while its position was unchanged (the layer laying in the middle of the working). The results of the numerical analysis allowed us to build the regularities of three stress components. In order to normalize cases of elastic modulus variation, a dimensionless χ-parameter is introduced which characterizes the relation between the elastic modulus of the matrix and the layer. The obtained regularities of the stress state of the χ-parameter have a functional character and allow to determine the stresses on the contour of the unsupported working, depending on the relation between the elastic moduli of the matrix and the layer for all possible spectrum of these parameters. | en |
| dc.identifier | DOI: 10.1051/e3sconf/201910900100 | en |
| dc.identifier.citation | Regularities of Stress State of Unsupported Working Occurring in a Layered Massif [Electronic resource] / Oleksii Tiutkin, Nataliia Petrosian, Anatolii Radkevych, Ahmad Alkhdour // E3S Web of Conferences. – 2019. – Vol. 109 : International Conference Essays of Mining Science and Practice, RMGET 2019, Dnipro, Ukraine, 25–27 June 2019. – 00100. – Title from the screen. – DOI: 10.1051/e3sconf/201910900100. | en |
| dc.identifier.issn | 2267-1242 (online) | |
| dc.identifier.uri | https://crust.ust.edu.ua/handle/123456789/11649 | en |
| dc.identifier.uri | https://www.e3s-conferences.org/articles/e3sconf/abs/2019/35/e3sconf_rmget18_00100/e3sconf_rmget18_00100.html | en |
| dc.identifier.uri | https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/35/e3sconf_rmget18_00100.pdf | en |
| dc.language.iso | en | |
| dc.publisher | EDP Sciences | en |
| dc.subject | layered massif | en |
| dc.subject | elastic modulus of the matrix | en |
| dc.subject | layer | en |
| dc.subject | stresses on the contour | en |
| dc.subject | КМТ | uk_UA |
| dc.subject | КБВ | uk_UA |
| dc.title | Regularities of Stress State of Unsupported Working Occurring in a Layered Massif | en |
| dc.type | Article | en |