王强民, 王皓, 杨建, 等. 2021. 西部侏罗系矿区充水含水层水文地球化学特征及矿井水来源综合识别[J]. 工程地质学报, 29(4): 1084-1093. doi: 10.13544/j.cnki.jeg.2021-0367.
    引用本文: 王强民, 王皓, 杨建, 等. 2021. 西部侏罗系矿区充水含水层水文地球化学特征及矿井水来源综合识别[J]. 工程地质学报, 29(4): 1084-1093. doi: 10.13544/j.cnki.jeg.2021-0367.
    Wang Qiangmin, Wang Hao, Yang Jian, et al. 2021. Hydrogeochemical characteristics of main water filled aquifers and source indicators of mine water in typical Jurassic mine area of western China[J]. Journal of Engineering Geology, 29(4): 1084-1093. doi: 10.13544/j.cnki.jeg.2021-0367.
    Citation: Wang Qiangmin, Wang Hao, Yang Jian, et al. 2021. Hydrogeochemical characteristics of main water filled aquifers and source indicators of mine water in typical Jurassic mine area of western China[J]. Journal of Engineering Geology, 29(4): 1084-1093. doi: 10.13544/j.cnki.jeg.2021-0367.

    西部侏罗系矿区充水含水层水文地球化学特征及矿井水来源综合识别

    HYDROGEOCHEMICAL CHARACTERISTICS OF MAIN WATER FILLED AQUIFERS AND SOURCE INDICATORS OF MINE WATER IN TYPICAL JURASSIC MINE AREA OF WESTERN CHINA

    • 摘要: 本文以水文地球化学理论为指导,基于研究区水文地质条件及矿山水害研究基础,构建了不同充水含水层水化学和氢、氧同位素基础特征值,结合不同煤层埋深煤矿含隔水层组合特征和导水裂隙带发育高度,综合识别了浅埋、中深埋和深埋多个煤矿的矿井水来源。研究结果显示,受水岩作用和水动力条件等因素影响,煤层上覆不同充水含水层地下水水化学类型和氢、氧同位素值差异明显;随着煤层埋深的增大,矿井水的矿化度呈显著增加趋势,氢、氧同位素整体呈减小趋势;在此基础上,综合采用水化学和环境同位素的方法对研究区不同煤层埋深煤矿的矿井涌水进行识别,认为浅埋煤矿矿井水为第四系松散含水层地下水和侏罗系砂岩含水层地下水的混合水,深埋和中深埋煤矿矿井水主要为侏罗系砂岩含水层地下水。

       

      Abstract: Based on the theory of the hydrogeochemistry,the hydrochemistry and environmental isotope basic eigenvalues of different aquifers overlying the coal seam in the Yushen mining areas were established. On this basis,the mine water sources of shallow buried mines,mid-deep buried mines,and deep buried mines were identified combined with the hydrogeological structures and heights of water conducting fracture zone of typical mines. Results showed that,the hydrochemical types and environmental isotope values of different aquifers overlying the coal seam were obviously different affected by the water-rock reactions and hydrodynamic condition. With the increase of the buried depth of coal seam,the salinity of mine water showed a significant increasing trend,while the δD and δ18 O of mine water showed a decreasing trend. And then the source of mine water for coal mines of different buried depth coal seam was identified by applying comprehensive hydrochemistry and stable isotope. It was considered that the mine water for shallow buried coal mines was a mixture of the groundwater for the Jurassic sandstone aquifer and the Quaternary loose aquifer. And the mine water for deep and mid-deep buried coal mines mainly came from the Jurassic sandstone aquifer.

       

    /

    返回文章
    返回