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31,1,2,2,21.,5261272.,547611:,;,,,,:;;;:TD853.33:A:100522518(2008)0620048205,,1100t/d,,,,,;,,,,1,,()780m,920536m,400m15m,13m3.791026,F2,,,,,2.85t/m3,2.65t/m3;1.51.52,f=46,,;,700m,22F2,,,,700m,2.84m,3.101026,,30m,40m,56m,56mYT227,,,,:;,;;,:,,,166200812GOLDSCIENCEANDTECHNOLOGYVol.16No16Dec.20083:2008205227;:2008206228.:(19672),,,1,,;,,;,,,;,,20m,20m,40m,,,,,,()3,,20085:,;,;,2:,,,,,3.1,30m,,60m,34m,12m;,;15kW,3,,3.2,,,,,2m,,,,,,,1/3,3.3,:,0.8m0.8m1.0m1.0m,2.0m;,50mm;50mm50mm,,,3.4,,,12m,,200m2,35m,,,,,,,,,3,(),,1500t,50t,30;,1000t,80t,3,594:,40,,5044.116mm,2.0m;150mm150mm6mm;,400mm,(1),,,,,,,(2),(3)YT227,50mm,(4),2,3:37mm,200mm,300g,,,;,,,,(5),,(200mm),(6),50mm50mm,1.2m1.2m4.2:122,4%,0.40.45,C50,3mm20%,782;,,20,SP23,,,(28)20MPa;,,,10,81;0.1MPa,;,;50mm,;1m,,20%,45m3/h,160m,60m,5.5kW,750kg;,,,,,,,,,,,,,5:,,(,),,,,,50t/d,,,,(54)05LIUJianetal.:ExperimentalStudyonComprehensiveShrinkageMethodinNalinGoldDepositGOLDSCIENCE&TECHNOLOGYPracticeofShallow2holeShrinkageMethodinMiningWorkZHAOHuaWanqiMiningDevelopmentCo.,Ltd.,Zhouning355401,Fujian,ChinaAbstract:AccordingtotheminingpracticeofWufengloutungsten2ironorethatusedshallow2holeshrinkagemethodinthepastfouryears,facingpartialminefragmentation,adaptationtolocalconditions,weexploreaplanthatnon2pillarstructurecoexisteswithpillarstructureinthemining.Floorpillarstructureusesfunneltyperunningchutesupplemen2tedwiththeformofpartialnon2pillaroredrawing,economicalandfeasible.Theminingschemebreakthelineoftra2ditionalpillarandtraditionalroom,meanwhilebyusingtheretrogradestyleslagminingmethod.Theactualsceneoftheorebodywithstoneandleanorereservedforpermanentpillarrandomly,itimprovedtheminingrecovery,reducedthepovertyrateoforeeffectively,andresolvedthetechnicalproblemsofthedifficultofrecoverypillar.Theresultiswellproofedbythepracticeoforemininginthepastyear,weobtainthebenefitsofeconomicandsocial.Keywords:Wufenglouironore;Shallow2holeshrinkagemethod;Mining;Miningrecoveryratel;Fujian(50)[1].[J].,2002,10(2):6212.[2],.[J].,2000,19(3):3422345.[3].[J].,2004,12(1):29233.ExperimentalStudyonComprehensiveShrinkageMethodinNalinGoldDepositLIUJian1,FANManhua1,DENGZhigao2,ZHANGQingsong2,ZHENGChengying21.GuangdongGaoyaoHetaiGoldMine,Gaoyao526127,Guangdong,China;2.GuangxiHongyiMiningIndustryCo.,Ltd.,Fengshan547611,Guangxi,ChinaAbstract:Weproposedminingschemeofmultiplesegmentsshotcreteandrockboltsupportcomprehensiveshrinkagemethod,accordingtominingtechnicalconditionandminingsituationinrecentyearsofNalingolddepositinGuangxi.Thismineisontrialcurrently.Wepredictitcansatisfyproductiontechnologyrequirementsoftheminethroughappli2cationvarietyofconstructiontechnology,especiallyforsafetyoperationdemandofminingandoutmineaspects,anditcansatifyproductioncapacitydemandofthemine.Keywords:Comprehensiveshrinkagemethod;Varietyofconstructiontechnology;Experimentalstudy;Nalingoldmine45ZHAOHua:PracticeofShallow2holeShrinkageMethodinMiningWorkGOLDSCIENCE&TECHNOLOGY