Author(s): HAN Ying, JIANG Cheng-lin
Pages: 1-4
Year: 2006 Issue:  4
Journal: Safety in Coal Mines
Keyword:  outburst forecast; general index; expansion energy in initial released gas; grey 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.