Modeling Shock Wave Processes in a Mine Opening with Permeable Barriers

Autor:	B. V. Postinkov, V. A. Kolotilov, N. F. Florya, V. S. Shalaev, V. M. Fomin, Yu. V. Shalaev
Rok vydání:	2019
Předmět:	Shock wave Rest (physics) 0211 other engineering and technologies Front (oceanography) Numerical modeling Geology 02 engineering and technology Mechanics Geotechnical Engineering and Engineering Geology 021102 mining & metallurgy 021101 geological & geomatics engineering
Zdroj:	Journal of Mining Science. 55:18-22
ISSN:	1573-8736 1062-7391
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d0f9bc2b0061ec5313908b90c98a0e6 https://doi.org/10.1134/s106273911901524x Zobrazit plný text záznamu Plný text ve formátu PDF