Evaluation on Coal Miner’s Emergency Response Capacity Based on the Catastrophe Theory and Triangular Fuzzy Number

Yuan Xiao-fang, Li Hong-xia

Abstract


The production environment of coal mine is complex and tough, so once dangerous situation appears it requires coal miners take accurate and effective emergency measures. Actually, the occurrence and further expansion of a large number of mining accidents are associated with coal miners’ mishandling of emergency. Therefore, evaluating coal miners’ emergency response capacity is the significant way to improve the coal miners' emergency response capacity level and pre-control coal mine accidents. Considering the drawbacks of traditional evaluation methods, this paper introduced the principle of catastrophe theory in evaluation, and proposed the evaluation model of coal miner’s emergency response capacity by introducing the triangular fuzzy number theory in order to reduce the uncertainties of underlying index grades made by experts. In this method, the importance and quantitative process of each assessing indices were determined by the intrinsic mechanism of the normalized formula in catastrophe model, thus the problems of estimating the assessing index weights were avoided and the effect of subjective factors was mitigated. Finally, the verification of evaluation was implemented on specific example, and the results show that this evaluation method is reasonable, feasible, exact, and stable.

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