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Using mixing model to interpret the water sources and ratios in an under-sea mine
Gu, Hongyu1; Ni, Huayong4; Ma, Fengshan3; Liu, Gang5; Hui, Xin6,7; Cao, Jiayuan2,3
2020-08-29
Source PublicationNATURAL HAZARDS
ISSN0921-030X
Pages18
AbstractIdentification of water sources is a key issue of water inrush. This study applied a mixing model based on hydrochemical data to identify water sources and proportions. This study highlighted (1) the importance of model scale and reaction evaluation before using the mixing model, (2) a newly proposed criterion based on eigenvalue analysis to identify the number of end-members, and (3) linear mixing model based on PCA (principal component analysis). 2.5 km(2)area was an appropriate scale to mixing model because tectonics and lithology were simple. Ion activity, ion exchange, and cycle time of water were evaluated, indicating that groundwater components were dominated by the mixing process. Tracers, such as K, Na, Ca, Mg, Cl, SO4, delta O-18, delta D, EC, TH, and TDS, were used as tracers in the mixing model. Five end-members (representing seawater, Quaternary water, freshwater, Ca-rich water, and Mg-rich water) were identified based on eigenvalue analysis and hydrochemical evolution analysis. A linear mixing algorithm was programmed using Matlab to compute the ratio of each end-member. The results showed that seawater was the dominated water sources (70% at most) threatening the mining operations, especially at the deep levels. Quaternary water mainly recharged the middle level and made up 50% at - 420 m level. Freshwater recharged the shallow level and made up to 40% at - 150 m level. Ca-rich water and Mg-rich water decreased with time. Finally, cross test and extension test of this method showed a high precision in reconstructing ion concentrations, low sensitivity to noise data, and highly extendible to future data.
KeywordWater inrush Water sources Proportion Mixing model Hydrochemistry PCA
DOI10.1007/s11069-020-04242-y
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China's project ; Natural Science Foundation of China's project ; China geological survey's project ; China geological survey's project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China's project ; Natural Science Foundation of China's project ; China geological survey's project ; China geological survey's project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China's project ; Natural Science Foundation of China's project ; China geological survey's project ; China geological survey's project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China's project ; Natural Science Foundation of China's project ; China geological survey's project ; China geological survey's project
WOS KeywordSTABLE-ISOTOPES ; END ; COMPONENTS ; IDENTIFICATION ; HYDROCHEMISTRY ; CHEMISTRY ; AQUIFER
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFC1504903] ; Natural Science Foundation of China's project[41907174] ; China geological survey's project[DD20190524]
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China's project ; Natural Science Foundation of China's project ; China geological survey's project ; China geological survey's project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China's project ; Natural Science Foundation of China's project ; China geological survey's project ; China geological survey's project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China's project ; Natural Science Foundation of China's project ; China geological survey's project ; China geological survey's project ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of China's project ; Natural Science Foundation of China's project ; China geological survey's project ; China geological survey's project
WOS Research AreaGeology ; Meteorology & Atmospheric Sciences ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS IDWOS:000563732700002
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/97677
Collection页岩气与地质工程院重点实验室
Corresponding AuthorGu, Hongyu
Affiliation1.China Geol Survey, Chengdu Ctr, Chegndu 610081, Sichuan, Peoples R China
2.China Merchants Chongqing Commun Res & Design Ins, Chongqing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
4.China Geol Survey, Nanjing Ctr, Nanjing 210016, Jiangsu, Peoples R China
5.China Geol Survey, Xian Ctr, Xian 710054, Shanxi, Peoples R China
6.Beijing Jingtou Urban Util Tunnel Investment Co L, Beijing, Peoples R China
7.Beijing Infrastruct Investment Co Ltd, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Gu, Hongyu,Ni, Huayong,Ma, Fengshan,et al. Using mixing model to interpret the water sources and ratios in an under-sea mine[J]. NATURAL HAZARDS,2020:18.
APA Gu, Hongyu,Ni, Huayong,Ma, Fengshan,Liu, Gang,Hui, Xin,&Cao, Jiayuan.(2020).Using mixing model to interpret the water sources and ratios in an under-sea mine.NATURAL HAZARDS,18.
MLA Gu, Hongyu,et al."Using mixing model to interpret the water sources and ratios in an under-sea mine".NATURAL HAZARDS (2020):18.
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