Abstract
The results of numerical modeling of intense shock wave propagation after explosion in a mine opening with permeable screen are presented. The problem is solved in the equilibrium non-viscous formulation without regard to chemical reactions and with averaged composition of mine air. It is shown that for a screen composed of four similar permeable barriers arranged as a labyrinth, the incoming shock wave has a strongest impact on the first barrier. As a consequence of weakening of the shock wave front on the first barrier, the rest barriers experience much less loading. In order to decrease peak loads on a load-bearing frame, it is necessary to reduce areas of flat front surfaces of metal structures.
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Russian Text © The Author(s), 2019, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2019, No. 1, pp. 22–28.
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Fomin, V.M., Postinkov, B.V., Kolotilov, V.A. et al. Modeling Shock Wave Processes in a Mine Opening with Permeable Barriers. J Min Sci 55, 18–22 (2019). https://doi.org/10.1134/S106273911901524X
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DOI: https://doi.org/10.1134/S106273911901524X