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Hydrogeochemical Characteristics and Groundwater Inrush Source Identification for a Multi-aquifer System in a Coal Mine
投稿时间:2018-08-01  修订日期:2018-12-20  点此下载全文
引用本文:ZHANG Haitao,XU Guangquan,CHEN Xiaoqing,WEI Jian,YU Shitao,YANG Tingting.2019.Hydrogeochemical Characteristics and Groundwater Inrush Source Identification for a Multi-aquifer System in a Coal Mine[J].ACTA GEOLOGICA SINICA(English edition),93(6):1922~1932
摘要点击次数: 132
全文下载次数: 141
DOI:10.1111/1755-6724.14299
作者单位E-mail
ZHANG Haitao 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China entao0824@163.com 
XU Guangquan 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China  
CHEN Xiaoqing 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China  
WEI Jian 2 Geological Survey Department, Gubei Coal Mine, Huainan Mining Group, Huainan, Anhui, 232001, China  
YU Shitao 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China  
YANG Tingting 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China  
 
Author NameAffiliationE-mail
ZHANG Haitao 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China entao0824@163.com 
XU Guangquan 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China  
CHEN Xiaoqing 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China  
WEI Jian 2 Geological Survey Department, Gubei Coal Mine, Huainan Mining Group, Huainan, Anhui, 232001, China  
YU Shitao 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China  
YANG Tingting 1 School of Earth and Environment, Anhui University of Science and Technology, Huainan, Anhui, 232001, China  
Abstract:Correct identification of water inrush sources is particularly important to prevent and control mine water disasters. Hydrochemical analysis, Fisher discriminant analysis, and geothermal verification analysis were used to identify and verify the water sources of the multi-aquifer groundwater system in Gubei coal mine, Anhui Province, North China. Results show that hydrochemical water types of the Cenozoic top aquifer included HCO3?Na+K?Ca, HCO3?Na+K?Mg and HCO3?Na+K, and this aquifer was easily distinguishable from other aquifers because of its low concentration of Na++K+ and Cl?. The Cenozoic middle and bottom aquifers, the Permian fissure aquifer, and the Taiyuan and Ordovician limestone aquifers were mainly characterized by the Cl?Na+K and SO4?Cl?Na+K or HCO3?Cl?Na+K water types, and their hydrogeochemistries were similar. Therefore, water sources could not be identified via hydrochemical analysis. Fisher model was established based on the hydrogeochemical characteristics, and its discrimination rate was 89.19%. Fisher discrimination results were improved by combining them with the geothermal analysis results, and this combination increased the identification rate to 97.3 % and reasonably explained the reasons behind two water samples misjudgments. The methods described herein are also applicable to other mines with similar geological and hydrogeological conditions in North China.
keywords:water inrush source, multi-aquifer, hydrogeochemistry, Fisher discrimination, geothermal verification analysis, coal mine
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