煤炭地下气化变权-模糊层次综合评价模型

发布时间：2019-05-29 00:24

【摘要】：为研究煤炭地下气化项目的综合评价机制,构建客观、全面、定量的可行性评价体系,指导地下气化项目决策和工程设计提供依据,采用层次分析法、模糊综合评价法和变权等数学方法,从资源、技术、经济、环境和能耗等6方面考虑,选取89个评价指标,构建了多层次模型,对指标类型进行了划分,并建立了隶属函数,创建了煤炭地下气化可行性常权-模糊层次和变权-模糊层次等2个综合评价模型。将2个综合评价模型分别应用于贵州某矿煤炭地下气化项目的可行性评价,并对结果进行了对比分析。结果表明,与常权-模糊层次综合评价相比,变权-模糊层次综合评价可通过权重变化来反映各等级的指标状态,避免了部分极值指标的影响因权重太小而被"淹没",评价结果中各级隶属度表现出更强的离散性,可信度更高。通过综合评价,可直观地反映出对象项目在资源、技术、经济、环境和能耗等方面的具体表现。
[Abstract]:In order to study the comprehensive evaluation mechanism of coal underground gasification project, construct an objective, comprehensive and quantitative feasibility evaluation system, and guide the decision-making and engineering design of underground gasification project, the analytic hierarchy process (AHP) method is adopted. Fuzzy comprehensive evaluation method and variable weight mathematical method, from the six aspects of resources, technology, economy, environment and energy consumption, 89 evaluation indexes are selected, a multi-level model is constructed, the index types are divided, and the membership function is established. Two comprehensive evaluation models, constant weight fuzzy level and variable weight fuzzy level, are established. Two comprehensive evaluation models are applied to the feasibility evaluation of underground coal gasification project in Guizhou, and the results are compared and analyzed. The results show that, compared with the constant weight fuzzy hierarchy comprehensive evaluation, the variable weight fuzzy hierarchy comprehensive evaluation can reflect the index state of each grade through the weight change, and avoid the influence of some extreme value indexes being "inundated" because the weight is too small. Among the evaluation results, the membership degree at all levels is more discrete and the credibility is higher. Through the comprehensive evaluation, the concrete performance of the target project in the aspects of resources, technology, economy, environment and energy consumption can be reflected intuitively.
【作者单位】：东华理工大学地球科学学院;中国矿业大学煤炭资源与安全开采国家重点实验室;
【基金】：东华理工大学博士科研启动基金(DHBK2015322) 江苏高校优势学科建设工程资助项目(SZBF2011-6-B35) 煤炭资源与安全开采国家重点实验室自主研究课题资助项目(SKLCRSM10X04)
【分类号】：TD841

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