Source identification of inrush water based on groundwater hydrochemistry and statistical analysis

被引:15
|
作者
Sun, Linhua [1 ,2 ]
Chen, Song [1 ,2 ]
Gui, Herong [1 ,2 ]
机构
[1] Suzhou Univ, Sch Resources & Civil Engn, Suzhou 234000, Anhui, Peoples R China
[2] Natl Engn Res Ctr Coal Mine Water Hazard Controll, Suzhou 234000, Anhui, Peoples R China
来源
WATER PRACTICE AND TECHNOLOGY | 2016年 / 11卷 / 02期
基金
中国国家自然科学基金;
关键词
coal mine; groundwater; source of inrush water; water-rock interaction;
D O I
10.2166/wpt.2016.049
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
Water source identification is important for water hazard controlling in coal mines. In this study, major ion concentrations of the groundwater collected from four representative aquifer systems in the Baishan coal mine, northern Anhui Province, China, have been analysed by a series of statistical methods. The results indicate that the major ion concentrations of the groundwater from different aquifer system are different with each other, and provided the possibility of water source identification based on hydrochemistry. Factor analysis indicates that these differences are controlled by different types of water rock interactions. The analysis based on US Environmental Protection Agency (EPA) Unmix model identified three sources (weathering of silicate minerals, dissolution of carbonate and evaporate minerals) responsible for the hydrochemical variations of the groundwater. Also, it shows that their contributions for the groundwater in different aquifer systems vary considerably. Based on these variations and on step by step analysis, the source aquifer system for the groundwater samples with unknown source has been determined and, similar to the result obtained by the cluster and discriminant analysis. Therefore, EPA Unmix model can be applied for water source identification in coal mine, as it can provide information about water rock interaction and water source identification simultaneously.
引用
收藏
页码:448 / 458
页数:11
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