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GUIZHOU BLASTING NETWORK
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Large-scale blasting of cluster holes under complex conditions of underground mines
- Categories:Accident case
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- Time of issue:2019-04-19 17:46
- Views:2
(Summary description)Completiontime:March2005 ProjectLocation:NantongDantongkengMine Completionunit:BeijingMiningandMetallurgicalResearchInstitute,HuaxiGroupTongkengMine Projecthostandparticipants:SunZhongming,ZhangYoubao,LiShiqing,ChenHe,SuJiahong,YaoGenhua,YuZiqing,LiuJiandong,PanJiaxu,WuGuicai,LuoXianwei,YuBin,YuYangxian,WeiFangjing,YangWeizhong,CaiHanqian,WangHuxin,DongWeijun,ZengLunsheng,MoRongshi,XiaHailiang,WenYanyu,LiuMenghong,YuanXiangquan,XieYuan,WeiKeli,WuZengqiang ContributedbySunZhongming In2002,theGuangxiAcademicianBankorganizedbytheChineseAcademyofEngineeringandtheNationalDevelopmentandReformCommissionheldaspecialdiscussionontheissueofthehiddendangersoftheTongkengMine.ItclearlypointedouttheurgencyandpossibletreatmentofthehiddendangersoftheTongkengMine.Technicalapproach. Basedonthis,theBeijingResearchInstituteofMiningandMetallurgyandHuaxiGroupcooperatedonMarch28,2005toconductalarge-scaleundergroundblastingwithachargeof150tattheDantongkengMineinsouthwestGuangxi. Thislargeblastingisakeyprojectforthenationalkeysafetyhazardremediationproject,thehiddendangermanagementofTongkengMine,andtheundergroundblastingofthelargestblastingvolumeinChina. HuaxiGroupCopperPitMineisalargeundergroundminewithamininghistoryofmorethan30years. Thethreemajororebodiesminedarethefineveinbelts,theNo.91andNo.92orebodiesfromtoptobottom,andthethreeorebodiesarepartiallyoverlappedintheverticaldirection. Theearliestminedfineveinbeltorebodyspontaneouslyignitedsince1976,formingafirezonethatcannotbecured,causingdisorderofthesubsequentminingsequence,leavingaconsiderablenumberofirregularlydistributedemptyareas. Withthedevelopmentofmineproductionandconstruction,themainminingareaoftheminehasgraduallyshiftedtothelowerNo.92orebody,formingagroupofupperandloweremptyareas,anditismoredifficulttocontrolthegroundpressureofthemine. Since1998,localcollapseofthestopeandmovementoftherockformationoccurred,andthenlocalizedcollapsebegantooccur.Atthesametime,thefirebarriercolumnleftinordertoensurethesafetyofthelowerminingareahasbeeninanincompletestate,controllingthespreadofthefirezoneandpreventingit.Thedifficultyofgroundpressuredisastersisgettingbiggerandbigger,andtheremaining3.6milliontonsoforeintheveinsoftheveinscannotberecovered. Theminingoperationsofthelower92orebodyaredirectlythreatened. In1997,itwaslistedasahiddendangerareaformajoraccidentsinGuangxi.In2002,itwaslistedasanationalkeysafetyhazardremediationproject. Inordertocurethehiddendangersandpressuredisastersinthefireareaandrecovertheoreresources,HuaxiGroupadherestotheprincipleof“preventionfirstandsafetyfirst”,intheStateAdministrationofWorkSafetyandtheSafetyProductionSupervisionAdministrationofGuangxiZhuangAutonomousRegion.Undertheguidance,wewillactivelycarryoutthemanagementofthehiddendangerzoneofthefineveins. TheBeijingResearchInstituteofMiningandMetallurgyisalarge-scalenationalcomprehensiveresearchinstitute.Ithascarriedoutlong-termsystematicworkinthedevelopmentandresearchofminingengineeringtechnology,andmanyresearchresultshavereachedtheinternationaladvancedlevel. Inparticular,ithasrichengineeringpracticeexperienceandinnovativetechnologyinhigh-efficiencyminingtechnologyandlarge-scaleblastingtechnology. InOctober2003,HuaxiGroupandtheBeijingResearchInstituteofMiningandMetallurgyjointlycooperatedtostartascientificandtechnologicalresearchprojectforthespecifictreatmentofcopperpitminesandrelatedtechnologies. Since2003,theBeijingResearchInstituteofMiningandMetallurgyhascooperatedwiththeHuaxiGroupTongkengMine.Aftermanyinvestigations,analysisandargumentation,ithasdecidedtoadoptapartialfilling,forcedcollapse,strongminingandstrongout,closedcoveragecomprehensivetreatmentplan,andscopeoftreatment.Itisdividedintothreeexplosionzonesandblastingiscarriedoutinstages. Thefirstexplosionzoneislocatedatthelevelof570mto650minthefineveinzone,includingthelarge14thand12thstopesandtheircorrespondingupperfirebarriers. Duetoalargenumberofirregularvacancies,ballastdamageandadjacentfirezonesandotherfactorscausedbyquitecomplexblastingconditionsandenvironment,forthedifferentpillarconditions,thefirstblastzoneadoptsdifferentstagesofphasebundlessuchaslinear,circularandsquare.Thedensedeepholeismainlycomposed,andtheblastingschemeofthelocalmedium-deepholeandsmalldiverticulumissupplementedtorealizetheoverallcollapseoftherockarea. Theblastingresistancelineofthebundleholeis5to14m. Thebeamholeblastingtechnologyhasthefeasibilityandapplicabilityunderspecialprocessconditions. Technicallyreliable,highefficiencyandhighstrength. Thelargeblastingdesignestablishestheblastingvibrationattenuationmodelandthedownholeshockwavepropagationattenuationmodeltoaccuratelypredicttheharmfuleffectsofblasting. Thepre-crackingvibrationreduction,flexiblewaveblockingwall,real-timemonitoringandothertechnicalmeansareusedtoeffectivelycontroltheharmfuleffectsofblasting. Theblastingrockchamberislocatedintheoriginalminingapproachoronbothsides,4mhigh. Thebeamholehasadepthof30to62mandisverticallyparalleltothehole. Thenumberofbundleholesis3to9. Holenetparameters:beamsp
Large-scale blasting of cluster holes under complex conditions of underground mines
(Summary description)Completiontime:March2005 ProjectLocation:NantongDantongkengMine Completionunit:BeijingMiningandMetallurgicalResearchInstitute,HuaxiGroupTongkengMine Projecthostandparticipants:SunZhongming,ZhangYoubao,LiShiqing,ChenHe,SuJiahong,YaoGenhua,YuZiqing,LiuJiandong,PanJiaxu,WuGuicai,LuoXianwei,YuBin,YuYangxian,WeiFangjing,YangWeizhong,CaiHanqian,WangHuxin,DongWeijun,ZengLunsheng,MoRongshi,XiaHailiang,WenYanyu,LiuMenghong,YuanXiangquan,XieYuan,WeiKeli,WuZengqiang ContributedbySunZhongming In2002,theGuangxiAcademicianBankorganizedbytheChineseAcademyofEngineeringandtheNationalDevelopmentandReformCommissionheldaspecialdiscussionontheissueofthehiddendangersoftheTongkengMine.ItclearlypointedouttheurgencyandpossibletreatmentofthehiddendangersoftheTongkengMine.Technicalapproach. Basedonthis,theBeijingResearchInstituteofMiningandMetallurgyandHuaxiGroupcooperatedonMarch28,2005toconductalarge-scaleundergroundblastingwithachargeof150tattheDantongkengMineinsouthwestGuangxi. Thislargeblastingisakeyprojectforthenationalkeysafetyhazardremediationproject,thehiddendangermanagementofTongkengMine,andtheundergroundblastingofthelargestblastingvolumeinChina. HuaxiGroupCopperPitMineisalargeundergroundminewithamininghistoryofmorethan30years. Thethreemajororebodiesminedarethefineveinbelts,theNo.91andNo.92orebodiesfromtoptobottom,andthethreeorebodiesarepartiallyoverlappedintheverticaldirection. Theearliestminedfineveinbeltorebodyspontaneouslyignitedsince1976,formingafirezonethatcannotbecured,causingdisorderofthesubsequentminingsequence,leavingaconsiderablenumberofirregularlydistributedemptyareas. Withthedevelopmentofmineproductionandconstruction,themainminingareaoftheminehasgraduallyshiftedtothelowerNo.92orebody,formingagroupofupperandloweremptyareas,anditismoredifficulttocontrolthegroundpressureofthemine. Since1998,localcollapseofthestopeandmovementoftherockformationoccurred,andthenlocalizedcollapsebegantooccur.Atthesametime,thefirebarriercolumnleftinordertoensurethesafetyofthelowerminingareahasbeeninanincompletestate,controllingthespreadofthefirezoneandpreventingit.Thedifficultyofgroundpressuredisastersisgettingbiggerandbigger,andtheremaining3.6milliontonsoforeintheveinsoftheveinscannotberecovered. Theminingoperationsofthelower92orebodyaredirectlythreatened. In1997,itwaslistedasahiddendangerareaformajoraccidentsinGuangxi.In2002,itwaslistedasanationalkeysafetyhazardremediationproject. Inordertocurethehiddendangersandpressuredisastersinthefireareaandrecovertheoreresources,HuaxiGroupadherestotheprincipleof“preventionfirstandsafetyfirst”,intheStateAdministrationofWorkSafetyandtheSafetyProductionSupervisionAdministrationofGuangxiZhuangAutonomousRegion.Undertheguidance,wewillactivelycarryoutthemanagementofthehiddendangerzoneofthefineveins. TheBeijingResearchInstituteofMiningandMetallurgyisalarge-scalenationalcomprehensiveresearchinstitute.Ithascarriedoutlong-termsystematicworkinthedevelopmentandresearchofminingengineeringtechnology,andmanyresearchresultshavereachedtheinternationaladvancedlevel. Inparticular,ithasrichengineeringpracticeexperienceandinnovativetechnologyinhigh-efficiencyminingtechnologyandlarge-scaleblastingtechnology. InOctober2003,HuaxiGroupandtheBeijingResearchInstituteofMiningandMetallurgyjointlycooperatedtostartascientificandtechnologicalresearchprojectforthespecifictreatmentofcopperpitminesandrelatedtechnologies. Since2003,theBeijingResearchInstituteofMiningandMetallurgyhascooperatedwiththeHuaxiGroupTongkengMine.Aftermanyinvestigations,analysisandargumentation,ithasdecidedtoadoptapartialfilling,forcedcollapse,strongminingandstrongout,closedcoveragecomprehensivetreatmentplan,andscopeoftreatment.Itisdividedintothreeexplosionzonesandblastingiscarriedoutinstages. Thefirstexplosionzoneislocatedatthelevelof570mto650minthefineveinzone,includingthelarge14thand12thstopesandtheircorrespondingupperfirebarriers. Duetoalargenumberofirregularvacancies,ballastdamageandadjacentfirezonesandotherfactorscausedbyquitecomplexblastingconditionsandenvironment,forthedifferentpillarconditions,thefirstblastzoneadoptsdifferentstagesofphasebundlessuchaslinear,circularandsquare.Thedensedeepholeismainlycomposed,andtheblastingschemeofthelocalmedium-deepholeandsmalldiverticulumissupplementedtorealizetheoverallcollapseoftherockarea. Theblastingresistancelineofthebundleholeis5to14m. Thebeamholeblastingtechnologyhasthefeasibilityandapplicabilityunderspecialprocessconditions. Technicallyreliable,highefficiencyandhighstrength. Thelargeblastingdesignestablishestheblastingvibrationattenuationmodelandthedownholeshockwavepropagationattenuationmodeltoaccuratelypredicttheharmfuleffectsofblasting. Thepre-crackingvibrationreduction,flexiblewaveblockingwall,real-timemonitoringandothertechnicalmeansareusedtoeffectivelycontroltheharmfuleffectsofblasting. Theblastingrockchamberislocatedintheoriginalminingapproachoronbothsides,4mhigh. Thebeamholehasadepthof30to62mandisverticallyparalleltothehole. Thenumberofbundleholesis3to9. Holenetparameters:beamsp
- Categories:Accident case
- Author:
- Origin:
- Time of issue:2019-04-19 17:46
- Views:2
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