Scheme Optimization of Mine Ventilation System Based on Catastrophe Progression Method

In view of the shortcoming of index weight calculation of other evaluation methods,the basic idea and evaluation procedures of catastrophe progression model are introduced.Adopt catastrophe progression method to analyze and evaluate three kinds of mining layout plans during the process of improvement on mine ventilation system in Rujigou Coal Mine.Compared with other evaluation methods,catastrophe progression method only needs to rank the importance of evaluation index,to a certain extent avoiding weight assignment subjectively and enhancing the scientificity and validity of evaluation results.