CAJ | 학술논문

A组煤（1煤）是矿井延伸开采的主要煤层，受底板承压岩溶水威胁。随着开采深度的增加，A组煤层底板灰岩突水几率也随之逐渐增大。采集谢桥矿A组煤层底板石炭系太原组石灰岩样品及对应层位的太灰水样品，并对不同层石灰岩样品进行显微镜下、X射线衍射（XRD）以及X射线荧光光谱（XRF）分析，对水样进行常规离子组分的测试分析，探讨了A组煤石灰岩矿物组成、化学组分及离子含量之间的关系。研究结果表明：太原组C2Ⅰ层和C2Ⅲ层石灰岩孔隙发育，溶蚀能力强，为含水层；C2Ⅱ层石灰岩裂隙不发育，岩溶不发育，为相对隔水层；太灰水中Ca2+、Mg2+、Na+、K+含量主要与石灰岩组成、pH值以及阳离子交换作用有关；Cl-含量与沉积水体盐度相一致。将岩石的矿物学特征与地下水化学组成同时进行研究对A组煤开采可行性分析具有重要现实意义。
A조매（1매）시광정연신개채적주요매층，수저판승압암용수위협。수착개채심도적증가，A조매층저판회암돌수궤솔야수지축점증대。채집사교광A조매층저판석탄계태원조석회암양품급대응층위적태회수양품，병대불동층석회암양품진행현미경하、X사선연사（XRD）이급X사선형광광보（XRF）분석，대수양진행상규리자조분적측시분석，탐토료A조매석회암광물조성、화학조분급리자함량지간적관계。연구결과표명：태원조C2Ⅰ층화C2Ⅲ층석회암공극발육，용식능력강，위함수층；C2Ⅱ층석회암렬극불발육，암용불발육，위상대격수층；태회수중Ca2+、Mg2+、Na+、K+함량주요여석회암조성、pH치이급양리자교환작용유관；Cl-함량여침적수체염도상일치。장암석적광물학특정여지하수화학조성동시진행연구대A조매개채가행성분석구유중요현실의의。
The coal group A (coal No.1) is the main coal seam during extension mining stage, the mining will be threatened by confined karst water. Along with the mining depth deepening, probability of coal group A floor limestone water bursting will gradually increase. The Xieqiao coalmine coal group A floor Carboniferous Taiyuan Formation limestone samples and corresponding horizon Taiyuan For-mation limestone water samples were collected. And carried out different layer limestone samples microscopic, X-ray diffraction (XRD) and X-ray fluorescence (XRF) analyses, water samples routine ion component testing analysis;discussed relations between coal group A limestone mineral composition, chemical constituent and ion content. The result has shown:limestone C2I and C2III in Taiyuan For-mation have developed pores and easy to be corroded, thus are aquifers;fissures and karst not developed in limestone C 2II thus a rela-tive aquifuge;Ca2+, Mg2+, Na+and K+contents in limestone water are related to limestone composition, pH value and cation exchange;Cl-content is consistent with salinity of water during the limestone was deposited. To study the rock mineralogical characteristics and groundwater chemical constituents simultaneously has important practical significance in coal group A mining feasibility analysis.