基于DEMATEL法的充填管道磨损风险评估可拓云模型

Extension Cloud Model for Risk Assessment of Filling Pipeline Wear Based on DEMATEL Method

为科学合理地确定充填管道磨损风险等级,引入了DEMATEL法和可拓云理论,建立了充填管道磨损风险评价DEMATEL-改进CRITIC-可拓云模型。在构建评估体系基础上,应用DEMATEL法研究指标因素之间的影响关系,采用DEMATEL中心度-改进CRITIC法获取指标综合权重,根据可拓云理论原理,以4座矿山为例,通过计算云综合关联度,评估磨损风险状况。结果显示,管径和料浆浓度是深井充填管道磨损的关键因素,4座矿山管道磨损风险均处于较大风险等级,与未确知测度和可变模糊集理论的评判结果完全一致,表明DEMATEL-改进CRITIC-可拓云模型在管道磨损风险评价方面具有适用性和有效性。

In order to scientifically and reasonably determine the risk level of filling pipeline wear,DEMATEL method and extension cloud theory were introduced,and DEMATEL-improved CRITIC-extension cloud model for risk assessment of filling pipeline wear was established.On the basis of constructing the evaluation system,the DEMATEL method was used to study the influence relationship between the index factors,and the DEMATEL centrality-improved CRITIC method was used to obtain the comprehensive weight of the index.According to the principle of extension cloud theory,taking four mines as an example,the wear risk status was evaluated by calculating the cloud comprehensive correlation degree.The results show that the pipe diameter and slurry concentration are the key factors of deep well filling pipelines wear.The risk of pipeline wear in four mines is at a large risk level,which is completely consistent with the evaluation results of unascertained measure and variable fuzzy set theory,indicating that the DEMATEL-improved CRITIC-extension cloud model is applicable and effective in pipeline wear risk assessment.