112(11,,221008;21,,221011),,,,,,,11111937,1939(),,,3,2080,,3000,70%,50,,112,,,,,,,,,,,,203040,,,,,,,,2030,2050,2050,,,,,,,,7m,,6233720077,,,:,,;,;,;,;,,,,,,,,,21958,,,,,,2007418,,,2,,,,,,,,,,,,(1),(2),,(3),,,,3311(1),,(2)3,,,,,,,(3),,,,(4)1,,,,312,472,(1),,(2),,,,(3),,,,(4),,,,,,,,,,,,31331311,,;,,,,,1,,,31312(1),,,,,,,,(2),,,,,,,,,,,,,,,(3),,,,,,,:[1]1112006[2](20042015)112003[3](20052020)1,12005[4]1[6],,1[M]1:,1999[7]1[J]1,2000(2)[8]1[M]1:,2004[9]1[J]1,1998(3)()8233720077AbstractsinEnglishAqualifiedminemastercanoperatehiscoalminewithoutfatalitySafetyinminesisapermanenttopicinthecoalindustry.Ac2cordingtothisspeechbyZhangXiwu,generalmanagerofShenhuaGroup,itispossibletooperatecoalminewithoutfatality.Tothisend,aqualifiedminemastermustdoagoodjobin10areas.Indirectcoalliquefactiondemonstrationprojects,maincoal-converted-oilproductsandtheirmarketprospectsThisarticledisclosessomeinformationaboutthedevelopmentcourseandmajorachievementsofindirectcoal-to-oilconversiontechnologytotallyde2velopedbyYankuangGroup.Italsointroducessomestatus-quoofthecoal-to-oilreal-sizedemonstrationprojectandelectricpowerco-productionprojectthatisabouttostart.Thearticlealsogivesananalysisofthecharacteristicsandmarketprospectsofsomemajorproductsfromthesaidindirectcoalliquefactionprocess.Chinascokingcoalpricetrendin2007AccordingtotheAuthor,underthecombinationof4factorssuchasthedomesticcokingcoalsupplyanddemandrelation,thechangingcokingcoalandcokepricesontheinterna2tionalmarket,domesticsteel-coke-cokingcoalpricechainandcokingcoalcostriseduetogovernmentpol2icyadjustment,thepriceofcokingcoalsonthedomesticmarketwillgenerallyremainstablewithmoderateincreasein2007.Theincreasemaybearound4%8%morethanlastyear.Therewontbeanymajorupsanddownsincokingcoalpricethisyear.Basedontheanalysismadeinthisarticle,changesincokingcoalpricesonthedomesticmarketmayexertsomeinfluenceontheinternationalcokingcoals.TaxesandfeesimposedonChinascoalsector:aresearchandrecommendationsOnanalyzingtheprofit-makingpotentialsofChi2nascoalindustryandtheorientationofgovernmentreformsontaxationandfees,thisarticlepresentstherelevantpoliciesprom2ulgatedbythecentralgovernmentthatareeffectivearoundtheentirecountryandthosethatareeffectiveinlocalplaces.Thearti2clealsoanalyzestheinfluencesofallthesepoliciesoncoalcompanies.Thearticlethenpinpointstheproblemsfacedbythecoalsectoronthetaxesandfeesimposedonthemandalsoputsforwardtheauthorsrecommendationsforsolution.PreservationandrevitalizationofBajiaogouworkersvillageofJiayangcoalmineinSichuanprovinceAstylishvillageofcoalworkerswithsurroundingscenerywellpreserved,BajiaogouistheveryplacewhereJiayangcoalmineoriginated.Thisvillagepossessesquitesomepreciousindustrialheritagesandrelics.Thisarticlegivesapresentationoftheindustrialculture,sceneriesandpresentconditionsofthevillageonthebasisofwhichoveralltargetfortherehabilitationandrevitalizationofthisvillageisi2dentified.Thisarticlethendiscusseshowtotransformthefunctionsofthisvillagebaseduponitsactualconditions.Alsoonthebasisoftheprincipleofpreservingtheoverallappearancesofthisvillage,thearticleproposessomemeasurestorenovatethekeyzonesinthisvillage.Applicationofheading-boltingmachinesinfasttailgateheadingincoalseamsOnanalyzingtheexperiencesofpreliminaryappli2cationofheading-boltingmachinesintroducedforuseinlargecoalminesinthiscountry,thisarticlemakesitclearthatheading-boltingmachinescanbeusedforsimultaneousroadwayheading,roadwaysupportingwithminimizedfreespaceonthefaceroof,bettersafetycharacters,reliableperformancewithimprovedsafety,adaptedtopoorerroofconditionsinheadingfaceandverysuitableforuseinfastheadinginlargecrosssectionalroadwaysinlargecoalmines.Thisarticlealsomakesacomparisonbetweendifferenttypesofheading-boltingmachinesthatareusedinChinaanddiscussesthetrendsofequipmentselectionandapplicationprospectsofheading-boltingmachines.InstallationtechniquesforerectingfullyautomaticcoalploughsinfaceByintroducingautomaticploughinstallationtechniqueatcoalfaceinXiaonancoalmine,thisarticledealswithallseparateworkingproceduresinvolvedandtheirinterrelationsonthebasisofwhichtheorganizationalsideoftheinstallingprocessisalsodealtwith.AfieldtestandrelatedstudyonfrozenpressureofdeepandthickcalcareousclaylayerThisarticlefirstintroducesthedynamicmo2nitoringofthefrozenpressurefoundinthedeepandthickcalcareousclaylayersectionwheretheauxiliaryshaftofGubeimineislocated.Themonitoringdatashowthatthemaximumvalueofthefrozenpressureinthedeepandthickcalcareousclaylayersec2tionisapproximatelythecombinedvaluesofthepressurevalueidentifiedasthepermanentstratumpressureandthemaximumfreezingforcedeterminedbythefreezingexperimentcarriedoutinaclosedsysteminindoorenvironment.Thechangepatternoftheaveragefrozenpressureswiththedepthcanbefullyexpressedbyexponentialfunction.()