Study on construction and quantification of evaluation index system of mine ventilation system

Mine ventilation system which was the important constituent of coal mining system ensured the safety production as critical measures. Construction and quantification of evaluation index system for mine ventilation system was the basis and standard of comprehensive evaluation of system's defect. This paper began with hazard factors which caused ventilation accident, investigated the direct and indirect reasons, and then carried on a qualitative analysis of Fault Tree. According to analysis results, an evaluation index system of ventilation system was constructed and the index was also quantified by use of AHP. Since that existing index system was improved and supplemented, it is supposed to improve the operational capability and rationality of daily management as well as safety evaluation of mine ventilation system.