刘庄煤矿11-2煤层底板砂岩富水规律及水化学特征研究  

Research on the water yield property and hydrochemical characteristics of sandstone in the 11-2 coal floor of Liuzhuang Coal Mine

作　　者：高晓云 GAO Xiaoyun(China Coal Xinji Energy Company Limited,Huainan 232001,China)

机构地区：[1]中煤新集能源股份有限公司,安徽淮南232001

出　　处：《建井技术》2024年第1期78-83,共6页Mine Construction Technology

摘　　要：采用水化学测试、统计分析、水文地球化学分析等方法,对刘庄煤矿11-2煤层底板砂岩富水性规律及水化学特征进行系统研究。研究结果表明:井田范围内112煤底板砂岩类型、沉积厚度、裂隙发育、富水性以F25断层为界分区性明显,水质类型为Cl·HCO_(3)—Na或HCO_(3)·Cl—Na型,以采区边界断层为界,主要离子含量存在较大差异性,并分析了水样中阳离子Na^(+)、Ca^(2+)、Mg^(2+)主要来源。研究成果可为查清砂岩裂隙含水层分布规律、富水性和水化学特征提供指导,为制订矿井防治水方案提供重要依据。By means of hydrochemical test,statistical analysis and hydrogeochemical analysis,the law of water yield property and hydrochemical characteristics of sandstone in 11-2 coal seam floor of Liuzhuang Coal Mine were systematically studied.The research results show that the sandstone type,sedimentary thickness,fracture development and water yield property of 11-2 coal floor within the mining area were clearly zoned by the F25 fault,the water quality was Cl·HCO_(3)—Na or HCO_(3)·Cl—Na,and the main ion content was significant different by the boundary fault of mining area.The main sources of cations Na^(+),Ca^(2+),and Mg^(2+)in the water sample were analyzed.The research results could provide guidance for ascertaining the water layer distribution law,water yield property and hydrochemical characteristics of sandstone fissure aquifer,and provide important basis for making mine water control scheme.

关 键 词：煤层底板 砂岩裂隙水 富水性规律 水化学特征 水层分布规律 

分 类 号：TD163.1[矿业工程—矿山地质测量] P641[天文地球—地质矿产勘探]