青东矿地下水化学特征及成因分析  

Chemical characteristics and genetic analysis of groundwater in Qingdong coal mine

作　　者：李瞳宇 韩立强 于鹏程 贾驰 李朋辉 LI Tongyu;HAN Liqiang;YU Pengcheng;JIA Chi;LI Penghui(Geological Exploration Institute,the First Exploration Bureau,China National Administration of Coal Geology,Handan 056000,China)

机构地区：[1]中国煤炭地质总局第一勘探局地质勘查院,河北邯郸056000

出　　处：《煤炭经济研究》2024年第S1期149-154,共6页Coal Economic Research

摘　　要：为了解煤矿采掘活动影响下地下水的水化学特征,以青东矿水文地质补勘工程为依托,选取淮北市青东矿为研究区,统计分析了区域内的水化学特征,运用Gibbs、离子比值等方法探究水质成因。结果显示:区内地下水中阳离子以K^(+)+Na^(+)为主,阴离子以SO_(4)^(2-)为主,Na^(+)、SO_(4)^(2-)浓度在时间上有增大趋势;水化学成分受蒸发浓缩、风化溶解、阳离子交换作用影响,主要来源于蒸发岩溶解,其次为硅酸岩等。不仅为煤矿防治水工作提供重要支撑作用,也为研究采动对地下水水质影响提供理论依据。In order to understand the hydrochemical characteristics of groundwater under the influence of coal mining activities,this paper selects Qingdong coal mine in Huaibei City as the research area based on the hydrogeological supplementary exploration project,and statistically analyzes the hydrochemical characteristics in the area,and uses Gibbs and ion ratio methods to explore the causes of water quality.The results show that the cations in the groundwater are mainly K^(+)+Na^(+),and the anions are mainly SO_(4)^(2-),and the concentrations of Na^(+)and SO_(4)^(2-)tend to increase over time.The water chemical composition is affected by evaporation concentration,weathering dissolution and cation exchange,mainly from evaporative karst hydrolysis,followed by silicate rock.This study not only provides important support for coal mine water control work,but also provides theoretical basis for studying the impact of mining on groundwater quality.

关 键 词：地下水 青东矿 水化学特征 成因 

分 类 号：TD741[矿业工程—矿井通风与安全]