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| 西部干旱区风化煤资源化利用评价指标体系构建与研究 |
| Construction and research of evaluation index system of resource utilization of weathered coal in arid region of west China |
| 投稿时间：2026-06-16 修订日期：2026-06-29 |
| DOI： |
| 中文关键词: 风化煤 西部干旱区 资源化利用 指标体系 层次分析法 |
| 英文关键词: Weathered coal Western arid region Resource utilization Index system Analytic hierarchy process |
| 基金项目:国家重点研发计划（2022YFF1303304） |
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| 中文摘要: |
| 受经济、交通、技术等因素限制,西部干旱区风化煤大量堆积,严重破坏了矿区脆弱的生态环境,同时缺乏适宜性的指标体系也严重制约了风化煤的资源化利用。基于此,本研究提出从风化煤的物理、化学、环境影响及施工性能等4个维度出发,系统构建风化煤资源化利用评价指标体系的创新思路。采用层次分析法(analytic hierarchy process,AHP)对风化煤资源化利用途径进行全面、准确、系统的评价。权重分析结果表明,影响风化煤资源化利用的准则层权重依次为化学性能指标(0.42)、施工性能指标(0.27)、环境影响指标(0.19)和物理性能指标(0.12),其中,化学性能准则层的腐殖酸含量和有机质含量的指标权重分别位于第1位和第3位,表明化学性能在风化煤的资源化利用方面起着决定性的作用；此外,施工性能准则层的安全性指标权重位于第2位,表明风化煤工程应用过程中在保证风化煤广阔的市场前景及利润的同时需保证工人的人身安全。最后,以新疆某露天煤矿的风化煤作为具体应用案例,进行实证。结果表明,除了物理性能维度中的粒径较大外,该露天矿风化煤资源化再利用潜力巨大,最具潜力的利用途径为土壤改良剂、肥料及生物材料等。该资源化利用评价体系的建立为促进风化煤清洁生产和煤炭行业的可持续性发展提供了理论和方法学的借鉴。 |
| 英文摘要: |
| Due to limitations in economy, transportation, and technology, large quantities of weathered coal are piling up in the arid regions of the west, severely damaging the fragile ecological environment of mining areas. At the same time, the lack of a suitable indicator system seriously restricts the resource utilization of weathered coal. Based on this context, the research proposes an innovative approach to systematically construct an evaluation index system for the resource utilization of weathered coal from four dimensions: physical, chemical, environmental impact, and construction performance. The Analytic Hierarchy Process (AHP) is employed to comprehensively, accurately, and systematically evaluate the pathways for the resource utilization of weathered coal. The results of the weight analysis indicate that the weights of the criteria affecting the resource utilization of weathered coal, in order, are chemical performance indicators (0.42), construction performance indicators (0.27), environmental impact indicators (0.19), and physical performance indicators (0.12). Among these, the weights of the humic acid content and organic matter content in the chemical performance criteria are ranked first and third, respectively, indicating that chemical performance plays a decisive role in the resource utilization of weathered coal. Additionally, the weight of the safety indicator in the construction performance criteria ranks second, highlighting the necessity of ensuring worker safety while guaranteeing the broad market prospects and profits of weathered coal during engineering applications. Finally, a practical case study is conducted using the weathered coal from an open-pit coal mine in Xinjiang. The results show that, apart from the larger particle size in the physical performance dimension, there is significant potential for the resource reuse of weathered coal in this open-pit mine, with the most promising utilization pathways being as soil amendments, fertilizers, and bioproducts. The establishment of this resource utilization evaluation system provides a reference for promoting clean production of weathered coal and sustainable development of the coal industry. |
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