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Force exerted by gas on material ejected during gas-geodynamic phenomena analysis and experimental verification of theory

Kozieł Katarzyna, Janus Jakub

Archives of Mining Sciences

2022

Vol. 67, no. 3

491--508

The analysis of natural hazards, including gas-geodynamic phenomena, requires study of the basic physical processes that take place at each stage of an event. This paper focuses on analysing the transport of fragmented rock material during rock and gas outbursts. Our theoretical considerations and experiments have allowed us to specify and verify the significant forces acting on fragmented rock during its transport, thus determining the speed of grains of each grain class in the stream of expanding gas. The above study may serve as a preface to a wide-ranging quantitative and qualitative energy analysis of the movement of material ejected during Gas-geodynamic phenomena.