榆树泉矿区地下水化学特征及水力联系程度分析  

Analysis on chemical characteristics and hydraulic connection degree of groundwater in Yushuquan Mining Area

作　　者：刘斌斌 孟凡林 薛建坤 郭军旗 罗安昆 Liu Binbin;Meng Fanlin;Xue Jiankun;Guo Junqi;Luo Ankun(Kuqa Kexing Coal Industry Co.,Ltd.,Aksu 842000,China;Xi′an Research Institute of China Coal Technology and Engineering Group,Xi′an 710054,China;Key Laboratory of Coal Mine Water Hazard Prevention and Control Technology in Shaanxi Province,Xi′an 710054,China)

机构地区：[1]库车市科兴煤炭实业有限责任公司,新疆阿克苏842000 [2]中煤科工西安研究院(集团)有限公司,陕西西安710054 [3]陕西省煤矿水害防治技术重点实验室,陕西西安710054

出　　处：《能源与环保》2023年第8期73-79,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：陕西省自然科学基础研究计划项目(2022JQ-471)。

摘　　要：地下水化学特征及其演化规律在煤矿开采和防治水害中占有重要地位。以榆树泉煤矿为研究对象,利用三线图、Gibbs图、同位素及离子比例关系等分析了矿区地下水水化学特征和各水体之间的水力联系程度。研究表明,矿区地表水、浅层地下水和深层地下水的化学类型为Na-Cl型和SO_(4)-Ca型,其化学成分的形成作用主要受岩石风化、蒸发浓缩作用和阳离子交替吸附作用的影响。地下水中Ca^(2+)主要来源于硅酸盐岩和石膏的溶解,SO_(4)^(2-)的来源除了石膏的溶解外,还可能来源于金属硫化物的溶解。而Mg^(2+)、HCO_(3)^(-)、K^(+)和Na^(+)主要来源于硅酸盐岩矿物的溶解。地表水之一的无名冲沟与深层地下水的联系程度等级为中等,其余地表水、浅层地下水和深层地下水之间的水力联系程度较高。The chemical characteristics and evolution law of groundwater play an important role in coal mining and water disaster prevention and control.In this paper,taking Yushuquan Coal Mine as the research object,Piper chart,Gibbs chart,isotope and ion ratio relationship were used to analyze the groundwater chemical characteristics and the degree of hydraulic connection between each water body.The results show that the chemical types of surface water,shallow groundwater and deep groundwater are Na-Cl type and SO_(4)-Ca type,and the formation role of their chemical components is mainly affected by rock weathering,evaporation and concentration and alternating cation adsorption.Ca^(2+)in groundwater mainly comes from the dissolution of silicate rock and gypsum.In addition to the dissolution of gypsum,the source of SO_(4)^(2-) may also be the dissolution of metal sulfide.Mg^(2+),HCO_(3)^(-),K^(+)and Na^(+)are mainly derived from the dissolution of silicate salt minerals.The degree of connection between nameless gully and deep groundwater is medium,and the degree of hydraulic connection between other surface water,shallow groundwater and deep groundwater is high.

关 键 词：榆树泉煤矿 水化学特征 水力联系 地下水 同位素 

分 类 号：P641.1[天文地球—地质矿产勘探]