| Issue |
EPJ Web Conf.
Volume 221, 2019
XXVI Conference on Numerical Methods for Solving Problems in the Theory of Elasticity and Plasticity (EPPS-2019)
|
|
|---|---|---|
| Article Number | 01053 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/epjconf/201922101053 | |
| Published online | 30 October 2019 | |
https://doi.org/10.1051/epjconf/201922101053
Numerical simulation of the stress-strain state of a coal seam caused by an explosion of a blast-hole charge with an annular gap
Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Science, Krykovskii tupik 4, Moscow, Russia
* Corresponding author: ivev@i.ua
Published online: 30 October 2019
The computer simulation of the propagation of a blast wave generated by various explosives is carried out. The simulation used numerical methods to solve dynamic problems in the mechanics of a deformable solid, which allow one to investigate the development of waves during the explosion of charges of various shapes at different speeds of detonation of explosives and various conditions of placement of charges in the hole. The novelty of the research is related to analysis of conditions for the formation of a tensile pulse, which determines the opening of natural and induced defects in a zone remote from the explosion (from 20 to 100 radii of charge), which is known as the zone of explosive pre-fracture.
© The Authors, published by EDP Sciences, 2019
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