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New Methods of Categorization of Coal Seams Prone to Coal and Gas Outbursts

Keywords: Categorization of Coal Seams , Gas Outbursts

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Abstract:

Many regions are historically connected with the mining of hard coal of highest quality. The mining transfers into areas considerably tectonically disturbed and into areas with numerous anomalous manifestations of the rock mass.As for this wide range of problems, I paid attention to the problems associated with a complicated geomechanical event, i.e. coal and gas outbursts. In the contribution I summarised the existing knowledge of various aspects of forecasting the coal and gas outbursts and indicated possible methods of reclassifying already classified seams into the category with the lower degree of hazard.

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