| 煤矿开采覆岩渗流场的有限差分分析 |
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| 引用本文： | 李春睿,齐庆新,刘治国.煤矿开采覆岩渗流场的有限差分分析[J].辽宁工程技术大学学报(自然科学版),2009(Z1). |
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| 作者姓名： | 李春睿 齐庆新 刘治国 |
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| 作者单位： | 煤炭科学研究总院北京开采所;煤炭科学研究总院; |
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| 摘 要： | 为了确保下沟矿在白垩系基岩裂隙承压强含水层下特厚煤层安全开采,结合煤矿的开采实际情况,利用有限差分软件FLAC3D流固藕合模块建立数值模型,分析了该矿开采过程中地下水渗流场的变化规律、覆岩稳定性以及覆岩变形情况,并结合井下电视对覆岩裂隙场的直接观测分析结果,确定导水裂隙高度,取得了试验工作面的成功开采,这对于控水采煤、含水地层煤矿的安全设计、提高煤炭资源回收等具有一定的指导意义。
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| 关 键 词： | 煤矿 渗流场 流固耦合 FLAC3D |
Finite difference analysis of cover rock seepage in coalmine |
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| LI Chunrui,QI Qingxin,LIU Zhiguo.Finite difference analysis of cover rock seepage in coalmine[J].Journal of Liaoning Technical University (Natural Science Edition),2009(Z1). |
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| Authors: | LI Chunrui QI Qingxin LIU Zhiguo |
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| Institution: | LI Chunrui1,QI Qingxin2,LIU Zhiguo1(1.Mining Design and Research Branch,China Coal Research Institute,Beijing 100013,2.China Coal Research Institute,China) |
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| Abstract: | In order to ensure the mining safety of Xiagou Coal Mine under Cretaceous bedrock crack aquifer thick seam,according to the geological conditions and combining working face parameters numerical model is built with finite difference software modules FLAC3D of fluid-coupling.The groundwater seepage field change in coal mining,cover rock stability and cover rock deformation are analyzed.The simulation results have direct significance for water control mining,coal mine safety design and raising coal reconery. |
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| Keywords: | coalmine seepage field flow-solid coupling FLAC3D |
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