Registration Number
0204U005542,
0103U008343
, R & D reports
Title
Development of a method for predicting coal and gas outburst site location during mining using a physical characteristics set
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Head
Zavrazhin V.V.,
Registration Date
22-12-2004
Organization
Institut of physies of mountain processes
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The prediction method has been developed based on this model and experimental research beginning from measuring intensities of wide and narrow lines in NMR spectrum of coal samples. Intensities and widths of these lines characterize respectively numbers and energies of weakly or strongly bonded hydrogen nuclei in coal. An integral factor can be further derived from these data determining a gas dynamic condition of the coal massif in time and position. Growth of narrow-to-wide lines intensities ratio indicates approaching a potential outburst site. Implementation of this method in coal mines has revealed high reliability of NMR spectroscopy techniques in prediction of sudden coal and gas outburst sites.5635
Product Description
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2020-04-03
