COMPUTER MODELING OF COAL SEAM BLASTING

The authors discuss the mechanism of breaking coal by blasting with a view to optimizing this method of dynamic treatment of coal and improving drilling-and-basting performance. A combination model of high gassy coal is used to describe the connection between coal breaking by blasting and subsequent...

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Bibliographic Details
Published in:Journal of mining science 2020-09, Vol.56 (5), p.741-752
Main Authors: Trofimov, V. A., Shipovskii, I. E.
Format: Article
Language:English
Subjects:
Analysis
Blasting
Blasting (explosive)
Coal
Coal industry
Computational fluid dynamics
Computer simulation
Computer-generated environments
Drilling
Earth and Environmental Science
Earth Sciences
Fluid flow
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Hydrodynamics
Methane
Mineral Resources
Mines and mineral resources
Rock Failure
Smooth particle hydrodynamics
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Summary:The authors discuss the mechanism of breaking coal by blasting with a view to optimizing this method of dynamic treatment of coal and improving drilling-and-basting performance. A combination model of high gassy coal is used to describe the connection between coal breaking by blasting and subsequent gas liberation. This model and the smoothed-particle hydrodynamics method are used to study evolution of damage zones and stress–strain behavior of coal in the neighborhood of a blasthole after explosion. The research findings help predict coal response to the dynamic impact.
ISSN:1062-7391
1573-8736
DOI:10.1134/S106273912005707X