CAJ | 학술논문

　　通过对山西省马兰煤矿2号煤层采掘面在开采和封闭时期的矿井水和沉积物的研究，揭示采掘面封闭前后对矿井水水质和沉积物的影响机理。研究结果表明：马兰煤矿矿井水均为 SO4-Ca型水质，矿井水均富含 SO2-4和 Fe离子；随着上部煤层的不断开采，3处矿井水呈现相同的变化规律，矿井水的pH值升高，Eh值降低，SO2-4、Fe、Mn和Zn离子浓度随之下降，其中北一暗斜井处的矿井水水质变化最显著；矿井水水质指标和流速变化能够控制其沉积物的矿物组成和结晶程度，北一暗斜井处的沉积物在两次采样中由斯沃特曼铁矿变为针铁矿，而其他两处的矿井水沉积物矿物组分没有发生变化，主要由针铁矿组成。研究结果能够提高对老空区积水水质的预测精度，并对煤矿突水水源判识具有重要意义。
　　통과대산서성마란매광2호매층채굴면재개채화봉폐시기적광정수화침적물적연구，게시채굴면봉폐전후대광정수수질화침적물적영향궤리。연구결과표명：마란매광광정수균위 SO4-Ca형수질，광정수균부함 SO2-4화 Fe리자；수착상부매층적불단개채，3처광정수정현상동적변화규률，광정수적pH치승고，Eh치강저，SO2-4、Fe、Mn화Zn리자농도수지하강，기중북일암사정처적광정수수질변화최현저；광정수수질지표화류속변화능구공제기침적물적광물조성화결정정도，북일암사정처적침적물재량차채양중유사옥특만철광변위침철광，이기타량처적광정수침적물광물조분몰유발생변화，주요유침철광조성。연구결과능구제고대로공구적수수질적예측정도，병대매광돌수수원판식구유중요의의。
Quality characteristics of mine water and mineral compositions of sediments at different time from the Malan coal mines, Shanxi Province, China were investigated. The results show that water quality types of all mine water samples were SO4-Ca, and mine water samples had high concentrations of sulfate and iron. With mining of the upper coal seam, pH increased and Eh value, SO2-4 , Fe, Mn and Zn ions concentrations of mine water samples decreased. Mine water samples in three sampling sites showed the same change patterns and the most significant changes of mine water quality happened in No.1 northern inclined shaft. Mineral composition and crystalline de-gree of sediments are controlled by water quality index and velocity of mine water. The minerals of sediment in No.1 northern inclined shaft have changed form schwertmannite to goethite in twice sampling. There were no changes of mineral constituents in other two sediment sampling sites, which were composed of goethite.