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Dajiang Net Jiujiang News In recent years, Dean County of Jiujiang City has successively collected a batch of used ammunition in the construction of the city. Due to age, rust and corrosion, the ammunition stability is extremely poor, and there is a possib

Dajiang Net Jiujiang News In recent years, Dean County of Jiujiang City has successively collected a batch of used ammunition in the construction of the city. Due to age, rust and corrosion, the ammunition stability is extremely poor, and there is a possib

(Summary description)SerialnumberProtectedobjectcategorySafetyallowablevibrationspeed(cm/s)<10Hz10Hz~50Hz50Hz~100Hz1Earthcave,adobehouse,stonehousea0.5to1.00.7to1.21.1to1.52Generalbrickhouse,non-earthquakelargeblockbuildinga2.0to2.52.3to2.82.7to3.03Reinforcedconcretestructurehousea3.0to4.03.5~4.54.2~5.04Generalancientarchitectureandmonumentsb0.1to0.30.2to0.40.3to0.55Hydraulictunnelc7~156Traffictunnelc10-207Mineroadwayc15~308Hydropowerstationandpowerplantcentralcontrolroomequipment0.59Newlypouredlargevolumeconcreted:Age:initial~3dAge:3d~7dAge:7d~28d 2.0~3.03.0~7.07.0~12Note1:Thelistedfrequencyisthemainvibrationfrequency,whichreferstothefrequencyofthewavecorrespondingtothemaximumamplitude.Note2:Thefrequencyrangecanbeselectedaccordingtosimilarengineeringorfieldmeasuredwaveforms. Thefollowingdatacanalsobereferredtowhenselectingthefrequency:chamberblasting<20Hz;deepholeblasting10Hz~60Hz;shallowholeblasting40Hz~100Hz.aWhenselectingtheallowablevibrationspeedofbuildingsafety,factorssuchastheimportanceofthebuilding,buildingquality,oldandnew,naturalfrequency,andfoundationconditionsshouldbeconsidered.bThesafetypermittingspeedofkeyprotectionofancientbuildingsandmonumentsattheprovinciallevelorabove(includingprovinciallevel)shallbeselectedbyexpertsandreportedtothecorrespondingculturalrelicsmanagementdepartmentforapproval.cWhenselectingthetunnelandroadwaysafetyallowablevibrationspeed,theimportanceofthestructure,surroundingrockcondition,sectionsize,deepburialsize,sourcedirection,seismicvibrationfrequencyandotherfactorsshouldbeconsideredcomprehensively.dThesafeallowablevibrationspeedofnon-water-blockingnewconcretewithlargevolumecanbeselectedaccordingtotheupperlimitgiveninthistable.

Dajiang Net Jiujiang News In recent years, Dean County of Jiujiang City has successively collected a batch of used ammunition in the construction of the city. Due to age, rust and corrosion, the ammunition stability is extremely poor, and there is a possib

(Summary description)SerialnumberProtectedobjectcategorySafetyallowablevibrationspeed(cm/s)<10Hz10Hz~50Hz50Hz~100Hz1Earthcave,adobehouse,stonehousea0.5to1.00.7to1.21.1to1.52Generalbrickhouse,non-earthquakelargeblockbuildinga2.0to2.52.3to2.82.7to3.03Reinforcedconcretestructurehousea3.0to4.03.5~4.54.2~5.04Generalancientarchitectureandmonumentsb0.1to0.30.2to0.40.3to0.55Hydraulictunnelc7~156Traffictunnelc10-207Mineroadwayc15~308Hydropowerstationandpowerplantcentralcontrolroomequipment0.59Newlypouredlargevolumeconcreted:Age:initial~3dAge:3d~7dAge:7d~28d 2.0~3.03.0~7.07.0~12Note1:Thelistedfrequencyisthemainvibrationfrequency,whichreferstothefrequencyofthewavecorrespondingtothemaximumamplitude.Note2:Thefrequencyrangecanbeselectedaccordingtosimilarengineeringorfieldmeasuredwaveforms. Thefollowingdatacanalsobereferredtowhenselectingthefrequency:chamberblasting<20Hz;deepholeblasting10Hz~60Hz;shallowholeblasting40Hz~100Hz.aWhenselectingtheallowablevibrationspeedofbuildingsafety,factorssuchastheimportanceofthebuilding,buildingquality,oldandnew,naturalfrequency,andfoundationconditionsshouldbeconsidered.bThesafetypermittingspeedofkeyprotectionofancientbuildingsandmonumentsattheprovinciallevelorabove(includingprovinciallevel)shallbeselectedbyexpertsandreportedtothecorrespondingculturalrelicsmanagementdepartmentforapproval.cWhenselectingthetunnelandroadwaysafetyallowablevibrationspeed,theimportanceofthestructure,surroundingrockcondition,sectionsize,deepburialsize,sourcedirection,seismicvibrationfrequencyandotherfactorsshouldbeconsideredcomprehensively.dThesafeallowablevibrationspeedofnon-water-blockingnewconcretewithlargevolumecanbeselectedaccordingtotheupperlimitgiveninthistable.

Information

Serial number

Protected object category

Safety allowable vibration speed (cm/s)

<10Hz

10Hz~50Hz

50Hz~100Hz

1

Earth cave, adobe house, stone house a

0.5 to 1.0

0.7 to 1.2

1.1 to 1.5

2

General brick house, non-earthquake large block building a

2.0 to 2.5

2.3 to 2.8

2.7 to 3.0

3

Reinforced concrete structure house a

3.0 to 4.0

3.5~4.5

4.2~5.0

4

General ancient architecture and monuments b

0.1 to 0.3

0.2 to 0.4

0.3 to 0.5

5

Hydraulic tunnel c

7~15

6

Traffic tunnel c

10-20

7

Mine roadway c

15~30

8

Hydropower station and power plant central control room equipment

0.5

9

Newly poured large volume concrete d:

Age: initial ~ 3d

Age: 3d ~ 7d

Age: 7d ~ 28d

 

2.0~3.0

3.0~7.0

7.0~12

Note 1: The listed frequency is the main vibration frequency, which refers to the frequency of the wave corresponding to the maximum amplitude.

Note 2: The frequency range can be selected according to similar engineering or field measured waveforms. The following data can also be referred to when selecting the frequency: chamber blasting <20Hz; deep hole blasting 10Hz~60Hz; shallow hole blasting 40Hz~100Hz.

a When selecting the allowable vibration speed of building safety, factors such as the importance of the building, building quality, old and new, natural frequency, and foundation conditions should be considered.

b The safety permitting speed of key protection of ancient buildings and monuments at the provincial level or above (including provincial level) shall be selected by experts and reported to the corresponding cultural relics management department for approval.

c When selecting the tunnel and roadway safety allowable vibration speed, the importance of the structure, surrounding rock condition, section size, deep burial size, source direction, seismic vibration frequency and other factors should be considered comprehensively.

d The safe allowable vibration speed of non-water-blocking new concrete with large volume can be selected according to the upper limit given in this table.

 

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The fourth blasting vibration measurement technology seminar was held
BlastingVibrationTestingTechnologySeminar  BlastingVibrationTestingTechnologySeminar   OnApril15-17,2011,ChinaEngineeringBlastingAssociationhelda“BlastingVibrationTechnologySeminar”atButterflyValleyHotelinNanhai,GuangdongProvince.TheconferencewashostedbyChinaEngineeringBlastingAssociation,GuangzhouZhongboSafetyNetTechnologyCo.,Ltd.,YangtzeRiverWaterConservancyThecommitteewasco-organizedbytheYangtzeRiverScientificResearchInstituteandSouthChinaUniversityofTechnology,andGaoYintong,secretarygeneraloftheassociation,presidedoverthemeeting.  ChairmanWangXuguangattendedthemeetingtomakeanimportantspeech   ChairmanWangXuguangattendedthemeetingandmadeanimportantspeech. AcademicianWangpointedout:Atthebeginningofthe12thFive-YearPlan,thesituationinallwalksoflifeisverygood.Thisisagoodpromotionforthedevelopmentofourengineeringblastingindustry,anditalsomakesusfeelacertainpressure. Blastingvibrationmonitoringisamajoreventinourengineeringblastingindustry.ThesafetyaccidentsthattheChinaEngineeringBlastingAssociationhasbeeninvolvedininrecentyearsareallrelatedtotheimpactofblastingvibration.Therefore,theblastingvibrationpropagationlawshouldbewellrecorded,andadatabaseshouldbeestablished.Class,summary,refiningandprocessingcaneffectivelypromotetheresearchofblastingtheoryandpromotethebetterdevelopmentofengineeringblastingindustry.   AcademicianWangreviewedandsummarizedtheresearchworkonvibrationmeasurementintheindustrysincetheChinaEngineeringBlastingAssociation's"StudyontheImpactofBlastingVibrationandTestingTechnology"heldinHangzhouonApril10,2009.WangAcademicianpointedoutthattheChinaAssociationofExplosivesfrom2009SinceAprilofthisyear,threesymposiumsonblastingvibrationtestinghavebeenheld.Thismeetingisthefourthspecialmeeting.Afterthemeeting,thedevelopmentdirectionofindustrialblastingtestingtechnologyandvibrationtestinginstrumentsshouldbeclarifiedandshouldbeimplemented.Apersonisresponsibleforimplementation.   WuXinxia,​​QuGuangjian,GaoYing,HuangYuewen,LongYuan,YangNianhua,GaoWenxue,ChenQiliangandotherexpertsmadespecialspeeches,GuangzhouZhongboSafetyNetTechnologyCo.,Ltd.,SouthChinaUniversityofTechnologyandYangtzeRiverWaterResourcesCommissionChangjiangAcademyofSciencesandotherunitsontheblastingVibrationremotetesting,calibrationandsystemmanagementweredemonstratedanddemonstratedonsite.  ProfessorWuXinxiafromtheYangtzeRiverScientificResearchInstituteoftheYangtzeRiverWaterResourcesCommission  ProfessorQuGuangjianfromGuangzhouZhongboSafetyNetTechnologyCo.,Ltd.  AssociateProfessorGaoYingfromSouthChinaUniversityofTechnology  SeniorEngineerHuangYangwenfromtheYangtzeRiverScientificResearchInstituteoftheYangtzeRiverWaterResourcesCommittee  ProfessorLongYuanfromthePLAUniversityofScienceandTechnology  ResearcherYangNianhuafromChinaAcademyofRailwaySciences  ProfessorofHighLiterature,BeijingUniversityofTechnology  AssociateProfessorChenQiliangfromGuangzhouZhongboSafetyNetTechnologyCo.,Ltd.   ProfessorWuXinxiafromtheYangtzeRiverScientificResearchInstituteoftheYangtzeRiverWaterResourcesCommitteeintroducedtheconstructionconceptandmanagementmodeofthe"DangerDetectionRemoteSensingInformationManagementSystemforEngineeringBlasting"basedontheInternetofThingstechnology,andthecorrespondingblastingremoteintelligentrecorderandblastingvibrationremotecalibrationequipment;GuangzhouZhongboProfessorQuGuangjianofSafetyNetTechnologyCo.,Ltd.introducedtheimportanceofbuildingavibrationmeasurementinformationmanagementsystemandthecomposition,functionandobjectivesofthevibrationmeasurementinformationmanagementsystem,aswellasremotecalibrationtechnology,dataprocessingandmethods;AssociateProfessorGaoYingofSouthChinaUniversityofTechnologyThekeytechnologyofremotecalibrationandvibrationmeasurementplatformbasedonvibrationgridisalsodemonstrated.TheseniorengineerofYangtzeRiverWaterResourcesCommitteeYangYuewenintroducedthecomposition,performanceandremotecalibrationmethodofblastingdatamonitoringsystembasedonInternetofThings.TheproblemwasdiscussedbyProf.LongYuanfromPLAUniversityofScienceandTechnology.Theresearchonthestandardizationofengineeringblastingvibrationtestingtechnologywasintroduced.ResearcherYangNianhuaofChinaRailwayScienceResearchInstituteintroducedthetechnologyoffieldtestingofblastingvibration;ProfessorGaoWenofBeijingUniversityofTechnologyintroducedshallowtunnel Excavationblastingvibrationremotemonitoringsystemandtestingtechnology;AssociateProfessorChenQiliangofGuangzhouZhongboSafetyNetTechnologyCo.,Ltd.takesthewesternpipelineblastingvibrationmonitoringpracticeasanexampletointroducethestepsandcontentsofblastingvibrationmonitoringwork,anddiscussestheblastingvibrationmonitoringtechnologyinthenearApplicationproblemsinpipelineblastingengineering.   Afteraheateddiscussion,theparticipatingexpertsaffirmedthattheapplicationofinformationnetworktechnologyinthefieldofengineeringblastingisthefuturedevelopmenttrend,andputforwardthepreparationofthe"TechnicalTeachingMaterialsforEngineeringBlastingVibrationMeasurementTechnology"and"TechnicalSpecificationsforEngineeringBlastingVibrationInspection(S
Associate Professor Chen Qiliang from Guangzhou Zhongbo Safety Net Technology Co., Ltd.   Professor Wu Xinxia from the Yangtze River Scientific Research Institute of the Yangtze River Water Resources Committee introduced
Announcement:TheMinistryofPublicSecurityissuedtwostandardsforgradingmanagementofblastingoperations   AccordingtotheRegulationsontheSafetyManagementofCivilExplosives,theMinistryofPublicSecurityissuedtwostandardsforthegradingmanagementofblastingoperationsonMay2,2012-"QualificationRequirementsandManagementRequirementsforBlastingOperationUnits"(GA990-2012),Theblastingoperationprojectmanagementrequirements(GA991-2012)(hereinafterreferredtoas"twostandards"),andissuedthe"Noticeontheimplementationoftheblastingoperationunitqualificationconditionsandmanagementrequirements"and"blastingoperationprojectmanagementrequirements"》.   Recently,theMinistryofPublicSecuritywillorganizeandcarryoutnationalpublicityactivities. TheProvincialDepartmentwill,inaccordancewiththespiritoftheMinistryofPublicSecurity'snoticeandtherequirementsofpublicity,combinedwiththepracticeofpublicsecuritymanagementintheblastingoperationindustryofourprovince,carefullystudyandformulatetheimplementationofworksteps,conductresearch,developaworksystem,establishaspecialorganization,andcarryoutimplementationworkinanorderlymanner. Thespecificworkrequirementsaretobenotifiedbytheprovincialgovernment.   AccordingtothenoticeoftheMinistryofPublicSecurity,theworkofcleaningupandrectifyingtheexistingblastingoperationsunitsandissuingthe"BlastingOperationUnitPermit"shallbecompletedbyDecember31,2012. Therefore,asofJanuary1,2013,anyunitmustholdtheBlastingOperationUnitPermittoengageinblastingoperations,otherwiselegalliabilityshouldbepursued. Beforethatdate,theoriginallegal"ExplosivesUsePermit"cancontinuetobeusedbyunitsthathavenotbeenorderedtostoptheiremployment.Thecommercialblastingoperationunitcanstillholdaneffectiveconstructiondepartment"blastinganddemolition"qualification.Thedocumentsareintheprovincetoundertaketheblastingoperationitemsofthecorrespondingtype.   Fromnowon,theprovincewillnolongerapprovetheoriginal"ExplosiveGoodsUsePermit",andthepublicsecurityorganswillstopacceptingtheconditionalreviewworkoftheconstructionandconstructiondepartmententrustedbytheconstructiondepartmentto"blastinganddemolitioncontractingqualifications".   downloadattachment:   1.Noticeontheimplementationofthe"QualificationConditionsandManagementRequirementsforBlastingOperationUnits"and"ManagementRequirementsforBlastingOperationProjects"   2.Qualificationconditionsandmanagementrequirementsoftheblastingoperationunit   3.Blastingoperationprojectmanagementrequirements
Special Report on Demolition Blasting of 104 Meters High Building in Zhongshan City, Guangdong Province
Editor'snote:   ThePeakGardenwasbuiltin1994andwascappedin1997.The34-storeybuildingis344.1metershigh.Itisaframe-supportedshearwallstructure.Itisthetallestbuildingdemolishedbydomesticblastingandhasappliedtobecomethe"Asia'sfirstexplosion".Oneofthefewhigh-risebuildings. ThePeakGardenwasappliedforblastinginFebruarytoofficialblastingonAugust13.Thetimewasupto6months.Thedayswearelookingforwardtoarefinallycoming,andIwishtheChinesepeopleasuccessfulblast!   Joyaftersuccessfulblasting    Figure1   FigureII   Successfulblastingofthetopgarden    PreparetoblastChenShaopantoprovidepictures    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess   ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess  ChenShaopanprovidespicturesoftheblastingprocess   ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess    ChenShaopanprovidespicturesoftheblastingprocess   ChenShaopanprovidespicturesoftheblastingprocess   "Asia'sfirst-explosion"trackingreport-   Unfinished15yearsofplanning   "Asia'sfirstexplosion"     ——Theblastingofthe104.1mhighbuildingofShijiePeakGardeninZhongshan,Guangdong   "Five,four,three,two,one,detonation!"   At10:30onthemorningofAugust13,withtheorderofLiuWen,thechairmanofthesmashingengineeringheadquartersofShijiePeakGarden,thestaffofGuangdongZhongrenGroupConstructionCo.,Ltd.Pressedthepulsedetonatorinyourhand. "嘣,嘣,嘣..."18consecutiveloudnoises,afterashort3.6seconds,atotalheightof104.1meters,atotalof34layersofZhongshanShijiePeakGardenunfinishedbuildingsweighingtensofthousandsoftonsofbody,oneSuddenly,hesuddenly"squats"andsuddenlyrushestowardthewestsideoftheopenspace. Thethreehigh-poweredfireenginesthathavebeenwaitingforalongtimeimmediatelysprayedahugeamountofwatermist,andcarriedout“interceptioninterception”onthedust“whitesmoke”causedbytheexplosion,andsprinkledwatertoreducedust. Congratulationsontheheadquartersofthemeetingroomonthe4thfloorofShunjingGarden,andthesimpleviewingplatformsetuponthebalconyburstintoapplause. Atthispoint,theblastingprojectofthePeakGarden,whichisknownasthe"Asia'sNo.1Blast",wasacompletesuccess. Afterthat,itwillenterthedemolitionandclean-upphaseforupto50days.   ItisunderstoodthatthetopofthehillgardenislocatedinthesouthsideofZhongshanCollege,DongchengDistrict,ZhongshanCity,ZhongshanCity,ontheeastsideofthesnowroad,willbebuiltintheStarCityBuilding. Thebuildingtobeexplodedis104.1meters,withatotalof34floors(including1basement),33.8meterswidefromeasttowest,38.5meterslongfromnorthtosouth,and27875squaremeters. Thebuildingisframe-supportedshearwallstructure,arrangedina“well”shape.The1stfloorandthebasementareframestructures,the2-32floorsareshearwallstructures,andthemiddlepartisthecoretube. Theeastsideofthebuildingis44metersawayfromthebottomoftheslope,thesoutheastsideis40metersawayfromDongyueTemple;thesouthsideis5.2metersawayfromthewall,only6metersawayfromthenearestresidentialhouse;thewestsideis81metersawayfromthebottomoftheslope. Thebuildingwasbuiltin1994andwascappedin1997. Forvariousreasons,thebuildinghasnotbeenofficiallyputintouse.IthasbeenrenamedasthePeakGarden,YangmingMountainVilla,StarCity,andZhongshanCity,butithasneverbeenabletogetridofthefateofthe"unfinished". InJune2007,thebuildingwastransferredtoZhongshanChangjiangZhaoyeRealEstateDevelopmentCo.,Ltd.asawhole. InordertocopewiththeoverallplanningdevelopmentofZhongshanCity,acceleratethepaceofrenovationoftheoldcity,andaccordingtothecompany'sprojectplanningneeds,decidedtouseblastingdemolition,theplotwillberebuiltafterthedemolition.   OnFebruary25,commissionedbythePublicSecurityBureauoftheMinistryofPublicSecurity,theGuangdongProvincialPublicSecurityDepartmentandtheZhongshanPublicSecurityBureau,theChinaEngineeringBlastingAssociationhostedareviewmeetinginBeijingonthe“BlastingDemolitionProjectoftheUnfinishedBuildingoftheShijiazhuangPeakGardeninZhongshanCity”.TheexpertgroupledbyWangXuguang,academicianoftheChineseAcademyofEngineeringandchairmanoftheChinaEngineeringBlastingAssociation,listenedtothebriefingandreviewrequirementsoftheProvincialPublicSecurityDepartmentandtheMunicipalPublicSecurityBureauontheblastingproject,andintroducedtheconstructionplanoftheGuangdongZhongrenGroup.Afterquestioninganddiscussion,thereviewopinionswereputforwardandtheMunicipalPublicSecurityBureauwasapprovedtoapprovetheconstructionoftheproject. Inordertoensurethesafetyandsuccessoftheblastingdemolitionproject,theZhongshanMunicipalGovernmenthasspeciallysetupacoordinationheadquarters,whichisresponsiblefort
Call for papers on participation in the "6th International Conference on Explosives and Blasting Technology of China, Japan and Korea"
Allrelevantunits:   The6thInternationalConferenceonExplosivesandBlastingTechnologyofChina,JapanandKoreawasscheduledtobeheldinSouthKoreafromOctober12to16,2011.Theconferenceincludedexplosives,detonationequipment,geotechnicalblasting,mineblastinganddemolitionblasting. Inordertostrengtheninternationalacademicexchangesandtechnicalcooperation,theChinaEngineeringBlastingAssociationisnowissuingnoticesofessaystorelevantunitsanddepartments.Expertsfromenterprises,institutions,researchinstitutesanduniversitiesarewelcometosignupandactivelycontributetotheconference.   Theessaycontentisasfollows:   1.Callforpapers:   TheauthorisaskedtofirstsubmitanEnglishabstractofabout200to400words(includingthetitleofthearticle,author,unit,contactnumberande-mail)andkeywords. Thebestchoiceis3to5keywords.   Second,thedraftschedule:   (1)DeadlineforsubmissionofEnglishabstracts:July20,2011   (2)DeadlineforsubmissionoffulltextinEnglish:September10,2011   Third,themodeofsubmission:   PleasesendtheEnglishabstracttotheemailaddress:cseb@cseb.org.cnormingxiuzhu@yahoo.com.cn   Contact:ZhuMingxiu   Contactnumber:(010)88399565   Fax:(010)68344564   Contactaddress:No.1WenxingStreet,Xizhimen,Beijing100044
Seven years of honing the "Blasting Net" sharp display
Time of issue : 2019-05-30 10:01:00
TheCoalIndustryPublishingHousepublishedthenewbook"ThePracticalManualforCoalMineBlasting"publishedinApril2008,andintroducedthedetailsof"ZhongboNet"intheentiresectionofChapter23ofChapter23,fullyaffirmingitssafetytothecoalmineblastingindustry.Informationproductionplaysanimportantrole.   ItisenoughtoprovethatundertheleadershipoftheChinaEngineeringBlastingAssociationandthestrongsupportoftheblastingassociationsofvariousprovincesandcities,aftersevenyearsoftempering,intheeraofrapiddevelopmentofinformationtechnology,"ChinaBlastNetwork"hasbecomeChinawithoutanydispute.Theforerunnerofthedevelopmentofinformationizationintheengineeringblastingindustryhasbecomethelinkoftheinformationtransmissionoftheblastingindustryandthecivilexplosiveequipmentindustryandtheinformationcenterfortheacquisitionofrelevantinformation.   "ChinaBlastNetwork"hasbeenrecognizedbytheindustryasthefirstportalsiteoftheblastingindustry. Theloudandmeaningfulnameof"BlastingNet"isonceagainrevealed!   ChinaBlastingNetworkEditorialDepartment   April10,2009

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