Blast propagation and hazard mapping outside coal mine tunnels and shafts

Gan, Edward Chern Jinn; Remennikov, Alex

doi:10.1016/j.tust.2024.105749

Tunnelling and Underground Space Technology

2024

DOI: 10.1016/j.tust.2024.105749

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Blast propagation and hazard mapping outside coal mine tunnels and shafts

Edward Chern Jinn Gan,

Alex Remennikov

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2024

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Cited by 2 publications

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Study on the thermal hazards of anionic surfactant AES on lignite via experiments and calculations

Jiang,

Cui,

et al. 2024

Journal of Molecular Liquids

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Study on the thermal hazards of anionic surfactant AES on lignite via experiments and calculations

Jiang,

Cui,

et al. 2024

Journal of Molecular Liquids

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A Study on the Effect of Different Charge Structures on the Permeability Enhancement of Coal Seam Blasting

Zuo,

Zhang,

Yang

et al. 2024

Processes

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With the increasing depth of coal mining, the ground stress of coal seams rises, the gas content rises, and the permeability decreases, which is unfavorable to gas extraction and increases the possibility of gas accidents in coal mines. Blasting technology is often used to improve the permeability of coal seams and increase the effect of gas extraction, but it is difficult to control the blasting effect of ordinary flux coils, and the direction of the fissure and the degree of development of randomness, so it is important to study the effect of different flux coil structures on the blasting of coal seams to increase the permeability of the coal seam, in this paper, first of all, through the numerical simulation to analyze the effect of the blasting of the ordinary structure flux coils and the fissure change in the polygonal structure flux coils, and then make the experimental module. Then, we make the test module, build the test platform, and analyze the effect of blasting penetration of different drug coil structures by comparing the strain after blasting and the change in resistivity before and after blasting of two kinds of drug coil structures, and the results show that the polymerized drug coil can play the role of directional fracturing, and compared with the ordinary structure of the drug coil, the polymerized drug shows a better effect of fracturing and penetration increase.

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Blast propagation and hazard mapping outside coal mine tunnels and shafts

Cited by 2 publications

References 9 publications

Study on the thermal hazards of anionic surfactant AES on lignite via experiments and calculations

Study on the thermal hazards of anionic surfactant AES on lignite via experiments and calculations

A Study on the Effect of Different Charge Structures on the Permeability Enhancement of Coal Seam Blasting

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