| Recent years,China has made great progress in coal mine emergency management and accident emergency treatment.Although the emergency management system of coal mine becomes increasingly comprehensive,there is something can be done for further improvement.Coal mine emergencies have the following three characteristics: multiple causes,complex problems and frequent accidents.Moreover,the absence of emergency management ability in coal mine production is often ignored.Combining expert judgment language description,indicator weights determination and decision selection,this paper establishes an index system based on the core idea of “4R”(Reduction、Readiness、Response、Recovery)theory.Besides,scientific decision-making reference for evaluating and ranking coal mine emergency management capabilities can also be found in this paper.At the same time,detailed suggestions are proposed with aim to reduce the casualties and economic losses and improve the emergency management ability of coal mine enterprises.The paper is divided into six chapters.First of all,the necessity of coal mine safety management is stressed to clarify the significance of coal mine safety management.Then,the “4R” theory is borrowed to construct an evaluation index system in four dimensions.Regarding the limited rationality of decision makers,the essay adopts a multi-granularity proportional hesitation fuzzy language set for evaluation.Finally,the VIKOR method is considered to rank the emergency management capabilities of each coal mine.Specifically,chapter one expounds the research background and significance,on the other hand,the research contents and methods are distracted from the theoretical works of emergency management ability of coal mine industry,multi granularity proportional hesitation fuzzy language and VIKOR method at home and abroad.The second chapter introduces the relevant knowledge and methods,including the “4R” emergency management mode,multi granularity proportional hesitation fuzzy language term set and VIKOR decision-making method.Accordingly,the third chapter establishes the evaluation index system of coal mine emergency management ability based on the “4R” theory,in which the indicator weights is determined by a optimization model based on incomplete weight information.Furthermore,the comparison and distance measurement of multi granularity proportional hesitation fuzzy set and detailed steps of multi-granularity proportional hesitation fuzzy VIKOR method are displayed in chapter four.With the purpose of verifying the effectiveness and stability of the method proposed above,the multi-granularity proportion hesitation fuzzy VIKOR method is applied to several real coal mine cases in Chapter five.Specially,two comparative analysis including the multi-granularity proportion hesitation fuzzy ordinary extension method and the multi-granularity proportion hesitation fuzzy TOPSIS(Technology for Order Preference by Similarity to Ideal Solution)and sensitivity analysis of index weight also prove that.According to the evaluative results,relevant suggestions on strengthening the ability of coal mine emergency management are provided.Finally,the sixth chapter describes the research summary and prospect.The innovations of this paper include two aspects.Specifically,taking reduction,preparation,response,and recovery into account,the “4R” emergency theory is considered during the whole process of constructing the safety evaluation system,which can be referred for the establishment of the index system.Secondly,due to special knowledge and backgrounds for experts,experts are requested to use multi-granularity proportional hesitation fuzzy language to evaluate the indicators.Especially,the Hamming distance is introduced to measure the mutual distance between two language sets to provides a more accurate evaluation tool for decision makers. |
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