Shicaocun Coal Mine,State Energy Group Ningxia Coal Industry Co. ,Ltd.

以石槽村煤矿宝塔山砂岩含水层为工程背景,构建了含水层三维可视化模型,通过单孔、多孔非稳定流模型对该可视化模型进行验证,并对顶板泄水点位置反演预估。结果表明:采区顶板群孔非稳定流模型数据与观测孔放水实测数据拟合性好,模型可信度高;含水层数值重构最优解为6个分区,即Ⅰ高渗中储水区、Ⅱ中渗高储水区、Ⅲ高渗高储水区、Ⅳ低渗中储水区、Ⅴ低渗低储水区、Ⅵ中渗中储水区;井下泄水点位置在G1-1观测点和F1-3观测点之间,泄水量为150~200m3/d。

Taking Baotashan sandstone aquifer in Shicaocun Coal Mine as the engineering background,a three-dimensional visualization model of the aquifer is constructed,and the visualization model is validated by single and porous unsteady flow models. The position of the roof drainage point is estimated by invert calculation. The results show that:the unsteady flow model data of the roof group holes in the mining area agree well with the measured water discharge from the observed holes,the model has high reliability; the optimal solution of aquifer numerical reconstruction can be divided into six zones, it is Ⅰ high permeability medium water storage zone, Ⅱ medium permeability high water storage zone, Ⅲ high permeability high water storage zone, Ⅳ low permeability medium water storage zone, Ⅴ low permeability low water storage zone, Ⅵ medium permeability medium water storage zone;the water drainage point of the well is located between G1-1 and F1-3 observation point,and the water drainage is m / d to m / d.

国家自然科学基金项目(52104103)

吕凤圆,常富贵,魏巍,等.非稳定流含水层重构与顶板群孔泄水点判定研究[J].矿业安全与环保,2024,51(5):46-51.

LYU Fengyuan,CHANG Fugui,WEI Wei,et al. Study on reconstruction of unsteady flow aquifer and determination of roof group hole drainage point[J]. Mining Safety & Environmental Protection,2024,51(5):46-51.