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shi men jie mei tu chu yu ce zhi biao de shi yan yan jiu
Author(s): 
Pages: 1-4
Year: Issue:  4
Journal: Safety in Coal Mines

Keyword:  outburst forecastgeneral indexexpansion energy in initial released gasgrey optimum selection;
Abstract: The coal samples are collected by drilling in situ,and two indexes of outburst forecast when a cross-cut is uncovered—general index and expansion energy in initial released gas,is tested in laboratory, according to the theory of grey system,indexes are optimized,we find that expansion energy in initial released gas is the best index of outburst forecast when a cross-cut is uncovered in MaJiaGou mine.
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