顾北煤矿煤系砂岩裂隙水水文地球化学特征及其成因分析  

Hydrogeochemical characteristics and genetic analysis of coal-measure sandstone fissure water in Gubei Coal Mine

作　　者：苏悦 许光泉[1] 魏健 杨婷婷 丁永俊 SU Yue;XU Guangquan;WEI Jian;YANG Tingting;DING Yongjun(School of Earth and Environment,Anhui University of Science and Technology,Huainan 232001,China;Gubei Coal Mine,Huaizhe Coal and Electric Power Co.,Ltd.,Fengtai 232088,China)

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001 [2]淮浙煤电有限责任公司顾北煤矿,安徽凤台232088

出　　处：《矿业安全与环保》2020年第2期16-24,共9页Mining Safety & Environmental Protection

基　　金：国家自然科学基金项目(41572147)。

摘　　要：采用水化学测试、统计分析、水文地球化学分析等方法,对顾北煤矿4个主采煤层顶板的76组砂岩水样进行系统研究,查明了各煤层顶板水的水化学作用类型,并对其成因进行了详细分析。研究结果表明:在顾北煤矿煤层埋藏条件和水化学环境控制下,13-1煤层为Cl-Na型,以溶滤和阳离子交替吸附作用为主;11-2煤层为HCO3·Cl-Na型,以溶滤作用为主;6-2煤层为SO4·HCO3-Na型,以脱硫酸和阳离子交替吸附作用为主;1煤层为HCO3·Cl·SO4-Na型,以溶滤溶解作用为主。研究成果可为查清含水层富水性和地下水径流特征提供指导,进而为制订矿山防治水决策提供重要依据。In this paper,76 groups of sandstone water samples from the roof of four main coal seams in Gubei Coal Mine were systematically studied by means of hydrochemical testing,statistical analysis and hydrogeochemistry analysis.The types of hydrochemical action of roof water in each coal seam were identified and the causes of their formation were analyzed in detail.The results show that under the coal seam burial condition and the hydrochemical environment in Gubei Coal Mine,the 13-1 coal seam is Cl-Na type,mainly characterized by dissolution filtration and cation alternating adsorption;11-2 coal seam is HCO3·Cl-Na type,mainly characterized by dissolution and filtration;the 6-2 coal seam is SO4·HCO3-Na type,mainly characterized by alternating adsorption of desulfurization acid and cation;the 1 coal seam is HCO3·Cl·SO4-Na type,mainly characterized by leaching and dissolution.The research results can provide guidance for identifying the characteristics of water-rich aquifer and groundwater runoff,and then provide important basis for making mine water control decision.

关 键 词：矿井水害 顶板砂岩裂隙水 成因分析 水文地球化学作用 化学组分 埋藏条件 

分 类 号：TD745[矿业工程—矿井通风与安全]