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 Li-uzhuang 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·HCO3—Na or HCO3· Cl—Na,and the main ion content was significant different by the boundary fault of mining area.The main sources of cations Na+,Ca2+,and Mg2+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
Key words
coal seam floor/sandstone fissure water/the law of water yield property/hydrochemical characteristics/water layer distribution law
维普
万方数据