A quantitative composition calculation model of mine water source based on “emblematic ions”

IF 2.4 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Hydrogeology Journal Pub Date : 2024-03-06 DOI:10.1007/s10040-024-02774-2

Huiqing Yuan, Zhimin Xu, Yajun Sun, Li Zhang, Ge Chen

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引用次数: 0

Abstract

Preventing water inrush disasters in mines is crucial for ensuring safe coal production; therefore, it is necessary to adopt a simple and effective method to determine the source and composition of mine water for effective water control in coal mines. The major ions content of groundwater in mining areas is easy to monitor, but the selection of appropriate parameters and calculation methods is key to being able to accurately discriminate between the water sources. In this study, the major ions content of 18 water samples was analyzed by cluster analysis, and a set of mean reference values was constructed for these ions in the mine-impacted groundwater of the saturated aquifers. The coefficient of variation was used to screen the parameters suitable for calculating the composition of mine water, and an innovative concept of characteristic ions, hereby defined as “emblematic” ions, was put forward. These were identified in this study as K⁺ + Na⁺, Ca²⁺, Mg²⁺ and HCO₃^–. The quantitative calculation model of the mine water source is established by using the fuzzy comprehensive evaluation method with the emblematic ions as the evaluation factor. Finally, the accuracy of the mathematical model is verified by comparing the calculated data with the actual observation data.

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基于 "标志性离子 "的矿井水源定量成分计算模型

防止矿井涌水灾害是确保煤炭安全生产的关键，因此，有必要采用简单有效的方法确定矿井水的来源和成分，以有效控制煤矿的水量。矿区地下水的主要离子含量易于监测，但选择合适的参数和计算方法是准确判别水源的关键。本研究采用聚类分析法对 18 个水样的主要离子含量进行了分析，并构建了一组饱和含水层受矿山影响地下水中这些离子的平均参考值。利用变异系数筛选出适合计算矿井水成分的参数，并提出了特征离子的创新概念，即 "标志性 "离子。本研究确定这些离子为 K+ + Na+、Ca2+、Mg2+ 和 HCO3-。采用模糊综合评价法，以徽离子为评价因子，建立了矿井水源定量计算模型。最后，通过将计算数据与实际观测数据进行对比，验证了数学模型的准确性。

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来源期刊

Hydrogeology Journal 地学-地球科学综合

CiteScore

5.40

自引率

7.10%

发文量

128

审稿时长

6 months

期刊介绍： Hydrogeology Journal was founded in 1992 to foster understanding of hydrogeology; to describe worldwide progress in hydrogeology; and to provide an accessible forum for scientists, researchers, engineers, and practitioners in developing and industrialized countries. Since then, the journal has earned a large worldwide readership. Its peer-reviewed research articles integrate subsurface hydrology and geology with supporting disciplines: geochemistry, geophysics, geomorphology, geobiology, surface-water hydrology, tectonics, numerical modeling, economics, and sociology.