简介：Inthepasttwentyyears,theproportionofcoalinprimary-energyconsumptioninChinaisgenerallybetween71.3%and76.5%.Theoutputofcoalwas1.374billiontonsin19%,and1.21tonsin1998,whichrankedfirstintheworld.NowcoalisminedmainlywithmechanizationinChina,whichisplannedtoreach80%inmajorState-ownedcoalminesin2000accordingtotheplanningofthegovernment(Lietal.,1998;TangDejin,1998).ComparedwiththeUSAandAustralia,Chinahasmorecomplexcoalgeologicalstructures.Basedonhigh-resolutionseismictechniqueincoalexploration,anewseismictechniquewithhigh-precisionandhigh-resolution(2-Dand3-D)hasbeendevelopedforthepurposeofdetectingsmallgeologicalstructuresincoalmineconstructionandproductiontomeettheneedsoflarge-scalepopularizationofmechanizedcoalmininginChina.Thetechniqueislowincostandrequiresarelativelyshortperiodofexploration,withhighprecisionandwide-rangeapplications.Inthemiddleoft