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| Hydrogeological condition analysis and water inflow estimation in Qiyuan Mine |
| Mu Jinxia |
| The First Hydrogeologic Team， China National Administration of Coal Geology， Handan 056004， China |
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Abstract The hydrogeological condition of Qiyuan Mine was studied in this paper. Through the analysis of the mine aquifer characteristics, aquifuge characteristics, hydraulic connection between aquifers and groundwater recharge and discharge conditions，mine water filling factors were determined, and mine water inflow was predicted. The coal mine was mainly threatened by Ordovician limestone and Taiyuan formation limestone water when mined No.81 and No.15 coal seams.
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