Selection of Gas Extraction Block Evaluation Index
WANG Nian-dong ( Safety Engineering Institute of Henan Polytechnic University, Jiaozuo 454003, China)
Convenient and accurate to evaluate gas extraction block has great significance for the coal mine gas management. To be able to easily and accurately evaluate gas extraction block. In this paper, the evaluation index were screened. Representative three indica- tors are selected. And give them weight. As an example, to evaluate and sort for the three blocks in shitai mine.
gas extraction ; the evaluation index ; screen ; the weight ; shitai mine