祁南煤礦某采區(qū)新生界含水層與隔水層分布特征及其水力聯(lián)系分析

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中圖分類號：P641 文獻標(biāo)志碼：A 文章編號：2095-2945（2025）19-0097-04

Abstract：Minewater，aprimaryconcernincoalresourceextraction，posesasignificantthreat toconstructionsafety.The coal-bearingstrataintheQinanminingareaarecoveredbyathickandlooselayerofCenozoicsedimentsstoringgroundwater. ThisstudyexploresthehydrogeologicalconditionsoftheCenozoiclooselayerinaspecificminingareaoftheQinancoalmine， focusingonthedepthanddistributionofancientiverchannelswithintheCenozoic.Utilizingregionalgeologicaldrilingdataand loginginformationanaalysisftelitholgyofCenozicsdimentsisonductedaquifes/aquitardsarecategorizedandtir hydraulicconnectionsarediscussed.TheinvestigationrevealsthepresenceoffouraquifersandthreeaquitardsintheCenozoic loselayer.Thefrstaquiferexhibitscharacteristicsofacompositepore-typegroundwatertoaweaklypresurizedaquiferwhile thelowerthreeaqifersareidentifiedaspressrizedaquifers.Ananalysisofhydraulicconnectionsidentifiesthewidespreadand stableditributionofthethirdaquifer，leadingtothelossofhydraulicconnectionsbetweetheupperaquiferandthefourth aquifer.Asaresult，theupperaquiferhasnodirectimpactonminerecovery.Waterfromthefourthaquiferinfitratesthemine throughfracture zones，establishing itas the primarysourceof waterdamage for shalowcoal mining under bedrock.

Keywords：Qinan coal mine; aquifer; aquitard; hydraulic connection; confined aquifer

煤炭是我國的重要基礎(chǔ)能源，巨大的需求量也促使煤礦的開采規(guī)模與日俱增。（剩余4826字）