Study on radon gas transport law of overlying rock layer under different geological conditions of coal spontaneous combustion
Journal of Radioanalytical and Nuclear Chemistry, ISSN: 1588-2780, Vol: 333, Issue: 12, Page: 6379-6389
2024
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Article Description
The alpha cup method was employed to delineate spontaneous combustion areas in three coal mines. Following this, cores were drilled to measure radon concentration at various depths using the RAD7 radon detector. Subsequently, the results were then combined with the equation of radon concentration distribution with depth in a semi-infinite medium, demonstrating the equation’s suitability for shallow coal seams. Thereafter, numerical models of radon migration were constructed. The study found that the upward migration of radon is weakened and adsorbed by rock formations, and faults, altering the migration path of radon.
Bibliographic Details
Springer Science and Business Media LLC
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