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Interpreting Mine Water Sources and Determining Mixing Ratios Based on the Spatial and Chemical Characteristics of Bedrock Brines in a Coastal Mine

文献类型：期刊论文

作者Song, Yewei1,2,3; Guo, Jie2,3; Ma, Fengshan2,3; Liu, Jia1,2,3; Li, Guang2,3
刊名WATER
出版日期2023-06-01
卷号15期号:11页码:19
关键词water inrush mixing ratio water source identification hydrochemistry stable isotope
DOI10.3390/w15112105
英文摘要Water inrush caused by mining below the seafloor seriously affects the safety and production of mines. Identifying the end element of mine inrush and accurately calculating the mixing ratios of end elements are the basis for a reasonable evaluation of water inrush risk. Based on hydrogeochemical and stable isotope indexes, combined with the spatial distribution characteristics of brine, the classification of brine in the study area was preliminarily determined as follows: shallow brine, middle brine, and deep brine (while previous studies have only classified bedrock brine as one category). Hierarchical multi-index analysis was used to identify the inrush end elements in the different sublevels, and an end-element mixed model was determined according to the analysis results of the four pairs of evaluation indexes (Cl--d(18) O, Cl--Ca2+, Cl--Mg2+, and Cl--Na+). Through a comparison with the deviation analysis results of previous studies, it was shown that this method is suitable for mine-water-source identification when under complex hydrogeology conditions. According to the calculation results of the mixing ratio, the seawater ratio shows, within the mining process, a trend of first increasing, then decreasing, and finally stabilizing. This trend is controlled by disturbance stress, self-weight stress, and tectonic stress. The vertical zonation of the seawater proportions indicates that seawater mainly recharges mine water through vertical fractures. The difference in the proportion of seawater at the water inrush points of the -600 m sublevels indicates that the F3 fault and the northwest water-conducting fracture zone may be the preferred flow channels for seawater to recharge mine water. The research results are of great significance to promote the safe mining of coastal mines around the world.
WOS关键词COAL-MINE ; ISOTOPES ; INTRUSION ; AQUIFERS ; DISTRICT ; INRUSH ; PILLAR
资助项目National Natural Science Foundation of China[41831293]
WOS研究方向Environmental Sciences & Ecology ; Water Resources
语种英语
出版者MDPI
WOS记录号WOS:001004677800001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/111212]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Guo, Jie
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Song, Yewei,Guo, Jie,Ma, Fengshan,et al. Interpreting Mine Water Sources and Determining Mixing Ratios Based on the Spatial and Chemical Characteristics of Bedrock Brines in a Coastal Mine[J]. WATER,2023,15(11):19.
APA Song, Yewei,Guo, Jie,Ma, Fengshan,Liu, Jia,&Li, Guang.(2023).Interpreting Mine Water Sources and Determining Mixing Ratios Based on the Spatial and Chemical Characteristics of Bedrock Brines in a Coastal Mine.WATER,15(11),19.
MLA Song, Yewei,et al."Interpreting Mine Water Sources and Determining Mixing Ratios Based on the Spatial and Chemical Characteristics of Bedrock Brines in a Coastal Mine".WATER 15.11(2023):19.

入库方式： OAI收割

来源：地质与地球物理研究所

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