煤田奥灰岩溶水水文地质勘探技术

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中图分类号： P641.4+61 文献标志码：A 文章编号：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

在煤层下伏奥灰岩溶含水层的情况下，随着煤层开采深度的增加易出现地下水突涌事故，除了影响煤层的正常开采外，还有可能引发安全事故。（剩余3726字）