煤田奧灰?guī)r溶水水文地質(zhì)勘探技術

打開文本圖片集

中圖分類號： P641.4+61 文獻標志碼：A 文章編號：2095-2945（2025）21-0171-04

Abstract： Taking somecoalfieldasanexample，hydrogeological exploration technologywasused toobtain theoccurrence characteristicsofOrdovicianlimestonekarstwatertoprovidebasisforwaterpreventionandcontrolinsubsequentcoalseam mining.TeGroundTransientElectromagneticMethod（TEM）isusedtodetectthewater-richsituationinthestructuralanomaly area;takingthe#15coalseamastheresearchobject，thedillngandsamplingmethodisusedtoobtainthewaterlevel， water-richsituationandkarstdevelopmentofthetargetrock formation;pumpinganddrainagetestsarecarredouttograspthe chemicalcharacteristicsofaquiferwaterandOrdovician limestonewater.Hydrogeologicalexplorationresultsshowthatroof sandstonewateristhedirectwater-fillngsourceformininginNo.15coalseam，andflooOrdovicianlimestonewateristhe indirectwater-filngsourcefor#15coalseam，sowaterpreventionandcontrolmeasures nedtobetaken.Thewater-resisting layeris mainly mediumandhardrock formations，which hasstronganti-damage abiltyandisbeneficial tocoalseam mining.

Keywords：GroundTransientElectromagneticMethod（TEM）;undergrounddriling;pumpingtest；hydrogeologicalexploration; coalfield

在煤層下伏奧灰?guī)r溶含水層的情況下，隨著煤層開采深度的增加易出現(xiàn)地下水突涌事故，除了影響煤層的正常開采外，還有可能引發(fā)安全事故。（剩余3726字）