基于熵权TOPSIS-物元可拓法的煤自燃危险性评价
首发时间:2024-11-29
摘要:为准确评估煤自燃危险性,有效预防矿井火灾的发生,通过分析煤自然发火影响因素,确定指标范围,划分自燃危险性等级,在传统逼近理想解排序法(technique for order preference by similarity to an ideal solution, TOPSIS)和单一物元可拓法的基础上加入熵权计算,提出了TOPSIS-物元可拓联用评价方法,建立了煤自燃危险性评价体系。将模型应用于现实生产状况,分析了不同矿井的8个煤层的自燃危险性,计算得到总体评价与分层次评价结果。研究表明:各评价对象的模型计算结果与实际情况基本一致,应用结果验证了所构建模型的可行性,对矿井火灾的预防和治理具有重要参考价值。
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Risk assessment of coal spontaneous combustion based on entropy weight TOPSIS-matter element extension method
Abstract:To accurately evaluate the spontaneous combustion risk of coal and effectively prevent the occurrence of mine fires, the range of indicators was determined and the spontaneous combustion hazard level was classified by analyzing the factors affecting the natural ignition of coal. Entropy weight calculation was added on the basis of traditional TOPSIS and single object element expandable method, and the evaluation method combined with TOPSIS matter-element extension method was proposed to establish the evaluation system of coal spontaneous combustion risk. The model was used in realistic production conditions to analyze the spontaneous combustion hazard of eight coal seams in different mines, and the overall evaluation and hierarchical evaluation results were calculated. Results showed that the model calculation results of each assessment object were basically the same as the actual situation, and the application results test the feasibility of the model, which is an important reference value for the prevention and administration of mine fires.
Keywords: coal spontaneous combustion entropy weight TOPSIS matter element extension risk assessment
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