国内外露天矿山台阶爆破技术

:1006-7051(2004)02-0054-051,2,2,2(1.,100083;2.,100044):,GPS,,:;;;:TD804;TD235.33:ABENCHBLASTINGTECHNIQUEINOPENPITMINESATHOMEANDABROADSHENLi2jin1,2,LIUYing2,WANGXu2guang2(1.UniversityofScienceandTechnologyBeijing,Beijing100083,China;2.BeijingGeneralResearchInstituteofMiningandMetallurgy,Beijing100044,China)ABSTRACT:Benchblastingtechniqueinopenpitminesathomeandabroadisintroduced.Therecentprogressinbenchblastingdesign,computeraideddesignsystem,GPSdrillingposition,pre2chargingandothertechniquesathomeandabroadaresystematicallyexpounded.Thelastachievementsofbenchblastingtechniqueinopenpitminesathomeandabroadareexpatiatedintermsofblastingparametersdesign,chargepattern,initiationsys2tem,blastingsafety,mechanizedloadingandcomputerapplicationetc.Finally,newviewsondevelopingbenchblastingtechniqueinopenpitminesinChinaarepresented.KEYWORDS:Benchblasting;Openpitmines;Blastingdesign;Computerapplication:2003-11-25:,,,,,,,,(),:,;;,;;,;,10220046ENGINEERINGBLASTINGVol110,No12June2004©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(AtlasCopco)(Ingersoll2Rand),-(BucyrusErie)-39R,311mm,40800kg39R,GPSGLONASS,,,,GPS,011m,,,,;,,,2,,,,,,,GPS,3,42211,,,,(50100mm)(100254mm)(254355mm)(355445mm),5,3570t,1429m,310414mm612m,150172mm,,200310mm16,71Table1Blastingparametersandrelativeindicesofsomeopen2pitminesathomeandabroad/m/mm/m/(kgm-3)/mm15202802301779169141081714310215310013801898157156121501720160154154151225021531501560176(515615)(67),122003101152150164112(415615)(3615),121525031001130127(6715)(7159)1525031001401975555667212(W),,,;,5,81255,:©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=ED(1)D,m;E0185g/cm3,E[5]:E(2120g/cm3)28(2170g/cm3)25(3139g/cm3)23W,WLangefors,Langefors,1113:W=D33PsŠCf(a/b)1/2(2):D,mm;sdynamite(),s=0184;P(kg/dm3),P=1127103l/D2,l(kg/m);ŠCC,W=11415m,ŠC=C+0105;f,f=3/(3+tg),,f=1;31,f=0195;a/b,,a/b=1125,a/b=0171998Dr.Pal.RoySri1R1B1Singh50,2:W=H5193DeDhRQD+0137LC(3)a=113b-4LC1RQD(4)De,mm;Dh,mm;L,kg/m;C,kg/m3;RQD,10cm,:RQD=115-313Jv(5)Jv,Jv415,RQD=100213;,,,,2131114,,D=150mm,d=76mm,,hh=(2030)D:10m,37%,,,3113%,,1002131214,,018112m,:13m,260270mm,110m(115m),(113115m),1616%,50%,28%36%21313()15,,,,,,,213142,7,,,,,,,,,;,65©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(ms),a(m),tt50(ms),,5,(Austin)SamesF,,,,2,7,14,16,,,,199412,,470m10m2033080,1115m3,7318t(594),,:,,,,,,,,17,18,,,,215,,,DYNOVIEVDYNACADBLASTEC7PreeceDSDM2CBLAST23D19Z,DMCBLAST23D,,,DMCBLAST23D,DMCBLAST2:;3D;3D;3,,,,,,,7(BGRIMM)BCRH225,,,,75,:©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(Orica):ANFO,,;,,,F,GPS,,24,,,,,,,,,,,,,,,,,,,,,:1ChadwickJ.Positioningandcommunication[J].MiningMagazine.1999,180(3):150-157.2,.[M].:,2002.3GreeneD.Computeraidedearthmovingsystems[J].MiningEngineering.1995,51(2):49.4HarrodGR,SahmWC.Mininginformationgoesreal2time[A].SMEAnnualGeneralmeeting[C].Orlando,Florida.1998:98.5.[J].,1989(3):18-24.6.[M].:,1998.7,.[A].()[C].:,1997.8LejugeGE,etal.BlastDamageMechanismsinOpenCutMining.OpenPitMiningWorkshop,Perth[M].1994:96-103.9LiUK,NgSY.PredictionofBlastVibrationandCurrentPracticeofMeasurementinHongKong[A].ProceedingsoftheConferenceAsiaPacific2QuarryingtheRim[C].HongKong.1992:119.10OlssonM,BergqvistI.Cracklengthsfromexplosivesinmultipleholeblasting[A].Proc.5thInt.Symp.onRockFragmentationbyBlasting[C].Rotterdam,Balkema.1996:191.11JoseA.Sanchidrian,etal.Ontheuseofrockconstantsinbenchblastdesignmethods[A].Proc.7thInt.Symp.onRockFragmentationbyBlasting[C].2002:396-405.12LangeforsU&KihlstromB.ModernRockBlasting[M].Almqvist&Wisksell,Stockolm,1963.13PerssonPA,HolmbergR&LeeJ.RockBlastingandEx2plosivesEngineering[M].CRCPress,BocaRaton,Florida,1994.14.()[M].:,2003.15.[M].:,1995.16AlanCameron,BillForsyth,ChuckSteed.Howtoassessperformanceandminimizedamageinopen2pitandunder2groundmines[J].E&MJ,1996(1):26-32.17CunninghamCVB.Theeffectoftimingprecisiononcon2trolofblastingeffects[A].InExplosive&BlastingTech2nique[C].Holmberg(ed),2000,Balkema,Rotterdam.123-127.18MohleH.ImprovingthetroughopeningsprocessatPre2mierMineutilizingelectronicdelaydetonators[A].Sympo2siumSeriesS21(TheSouthAfricanInstituteofMiningandMetallurgy):6thInt.Sym.ForRockFragmentationByBlasting[C].1999:31-40.19PreeceDS,ChungSH.Developmentandapplicationofa32Drockblastcomputermodelingcapabilityusingdiscreteelements2DMCBLAST23D[A].Proc.of27thAnnualCon2ferenceonExplosiveandBlastingTechnique[C].2001(I).Orlando,FloridaUSA.11-18.85©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.