Fuzzy Comprehensive Evaluation for Rock Dynamic Disaster Hazard Assessment on the Coal Face
نویسنده
چکیده
In the deep mining, the disaster dynamic of coal petrology and gas becomes increasingly serious, dynamic coupling of coal gas disaster grows in number. However the traditional method of predicting is limited. In order to evaluate the dynamic disaster hazard level of the coal face in the deep mine, a fuzzy hierarchy comprehensive evaluation model of the coal petrology dynamic disaster on the coal face was constructed. According to the gas geological condition of the 111303 first coal mining face of Kouzidong mine, analyzing and studying each factor that affects the degree of the dynamic disaster hazard by the AHP, the weight value of impact factor was determined. The method of fuzzy comprehensive evaluation was used , calculating all the factors that affect different weight and determining the coal face rick level of Kouzidong mine. In the mining process on 111303 working face, the results of the fuzzy comprehensive evaluation were verified. The results showed that evaluation results can accurately reflect the hazard level of the working face, and the results could be used for the coal face in similar conditions.
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