煤矿采空区及塌陷区的地球物理探查

306Vol.30No.6200512JOURNALOFCHINACOALSOCIETYDec12005:0253-9993(2005)06-0715-051,1,1,1,2(1.,130026;2.,128000):,.,.:;;;:P631:A:2005-04-26:(1963-),,,,.Tel:[phone],E-mail:jinghua@jlu1edu1cnThegeophysicalexplorationaboutexhaustedareaandsinkingareaincoalmineLIUJing2hua1,WANGZhu2wen1,ZHUShi1,WENGAi2hua1,XIAAn2ying2(11CollegeofGeoexplorationScienceandTechnology,JilinUniversity,Changchun130026,China;2.TongliaoConstructionQualityCheckingCenter,Tongliao128000,China)Abstract:Summarizedthegeophysicalcharacteristicsofexhaustedareabasedontheformerinformationofprac2tices;andselectedtheHD(highdensity)resistivitymethod,TEM(TransientElectromagnetism)methodandsoilradonradioactivemeasurementmethodtomakeourmeasurement.Basedonthetwosurveyprofilesinunknownex2haustedareainYingcheng,theresultsshowthatthegeophysicalcharacteristicsoftheexhaustedareaandsinkingareaarelowresistivityandhighradonconcentration.Keywords:exhaustedarea;sinkingarea;geophysicalcharacteristic;geophysicalmethod1Fig11Sketchmapofsinkingvertialthreezoneintheexhaustedareaofcoalmine,,,,.,,,.,.,3[1,2](1):(1):.(2):,,,,.200530(3):,.,,,,;,,,.,,,.1,,,.,,.,,,,,;,,[2].,.111[3],(),..,,,,,,;,,,,,.112[4],,.,,,..,.,,r=v/2t/fc,v;fc;t.,,..,,.,.113[5](1),,,,,,,.,.;,,.,,,.(2)[68],,,,,,,;6176:,,.,;;.,,.,,..114[9,10],.,,,,.,.,,.,,.,,,,,,.,,,.,,,,,..2211,,..,,,,,.60m,,,.2Fig12Surveylinelayout212,,2,L0,L1,L0;L1.DUK-2,60,5m,.FD-3017RaA,20m,80cm,115L,2min,2min.GDP32,,:50m50m.16Hz,610813A.10,1m2.25m.213(1)L0L0,3(a)(c).3(b),60m,m200m,515m,2050m,15m,,,.7172005303L0((a),(b),(c))L1((d),(e),(f))Fig13SyntheticalcomparisonmapofL0andL1profile(a),(d);(b),(e);(c),(f),,,,,,,.(3(a))250m,250350m,350450m,.,,,,;,,,,,;,,,,,.(3(c))(3(b)),,,,,.(2)L13(d),3:10270m,,50200Bq/m3,;2270360m,,40Bq/m3,;3360630m,,,100250Bq/m3.3,L0.(3(e)),3:10200m,30m,4585m,30m,545m;2200330m,,125145m,,60m;38176:330600m,,70m,1525m.3,,,,,,,;,;,,.,200370m,.370600m,.3,.3,:(1),.(2),;,,,50100Bq/m3.(3),.,,,,.2001,!:[1],.[J].,1996(5):6366.[2],.[J].,1998(1):3941.[3],,,.[J].,2002,14(3):7072.[4].[J].,1998,10(3):3941.[5],,.[J].,1999(2):3840.[6],.[J].,1999,10(4):7376.[7],,.[J].,2002(2):39.[8],,,.[J].,2001,15(3):221224.[9],,.[J].,1999,14(1):7176.[10],,.[J].,2004,14(1):180181.917