| Coal spontaneous combustion is one of the main disasters in coal mine. The goaf spontaneous combustion of coal is one of the main factors of mine fire and the focus of governance of mine fire prevention works. The goaf coal spontaneous combustion risk fuzzy comprehensive evaluation can reasonably reflect the situation of the goaf coal spontaneous combustion risk. It can provide reliable bases for taking fire prevention measures. Therefore the goaf coal spontaneous combustion risk fuzzy comprehensive evaluation has important practical significance for mine fire prevention.The goaf coal spontaneous combustion risk fuzzy comprehensive evaluation mainly includes study on index system of spontaneous combustion risk evaluation, fuzzy comprehensive evaluation and spontaneous combustion prevention. Study on index system of coal spontaneous combustion risk evaluation in goaf is designed to comprehensively analyze the various factors influencing goaf coal spontaneous combustion and establish rational evaluation index system. And then through the fuzzy comprehensive evaluation, it can get the final evaluation result by classification assessment of the various factors influencing goaf coal spontaneous combustion and the established evaluation model. According to the evaluation results and the evaluation level of each factor, rational fire prevention measures are selected to provide scientific bases and guidances for mine fire prevention works.Combined with the actual conditions of1021mining face in Wugou Mine, fuzzy comprehensive evaluation of1021mining face goaf is done. The evaluation results are reached to guide practice and formulate fire prevention scheme. |
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