中国矿山工程

In order to improve the safety and reliability of coal mine gas control system, a safety assessment system for coal mine gas control system is established, utilizing the improved fuzzy hierarchical analysis method and entropy weight method to determine the subjective and objective weight of each indicator respectively, and then, according to the principle of information entropy minimization, the weight results obtained by the two methods are combined to obtain the complex weights, which overcomes the problem of determining unreasonable weight by a single assessment method. A mine in Guizhou Province is taken as the practice object, through the process of “qualitative-quantitative-qualitative”, the safety of the coal mine gas control system is qualitatively assessed, and based on the calculated results, the corresponding rectification suggestions are put forward for the existing problems in the mine, which has high practical value for the assessment and improvement of the safety of coal mine gas control system.