树脂全长锚固锚杆外形尺寸优化实验室研究林健

396Vol．39No．620146JOUＲNALOFCHINACOALSOCIETYJun．2014．J．20143961009－1015．doi10．13225/j．cnki．jccs．2013．0966LinJianＲenShuoYangJinghe．Laboratoryresearchofresinfull-lengthanchoringboltsdimensionoptimizationJ．JournalofChinaCoalSociety20143961009－1015．doi10．13225/j．cnki．jccs．2013．0966100013。。。1.46mm1.00mm11.05mm33.15mm。125mm7.7%40%50%0.73kN。TD350A0253－9993201406－1009－072013－07－10“”2012BAB13B02KJ－2013－TDKC－071969—。[e-mail]esinfull-lengthanchoringboltsdimensionoptimizationLINJianＲENShuoYANGJing-heCoalMiningandDesignDepartmentTiandiScienceandTechnologyCo．Ltd．Beijing100013ChinaAbstractBoltfull-lengthprestressedanchormethodisaneffectivemeanstosolvesupportproblemofcomplexanddifficultroadwaybutthedifficultyofconstructionhasbeenrestrictingitsapplicationandpromotion．Thispaperwascommittedtosolvethedifficultproblemofcoalmineroadwayfull-lengthanchoringthroughoptimizedanchorshapeunderthepremiseoftheguaranteeofanchorperformance．Thepaperusedlaboratorytestingresearchedontherela-tionshipbetweentheboltshapeandanchorageboltperformanceandinstallationresistance．Optimizedboltprofileheightisreducedfrom1.46mmto1.00mmboltprofilespacingisincreasedfrom11.05mmto33.15mmboltpro-filewithstaggeredarrangementmode．Afterthisimprovementtheboltdrawingforcethantheoriginalincreasedby7.7%whenthepull-outtestoftheboltisat125mmInstallationprocessisreducedbyabout40%thanbeforeopti-mizationthethrusttoinstallboltisabout50%oftheoriginalwithmaximumof0.73kN．Keywordsfull-lengthanchorboltprofilespacingboltprofileheightdrawingforceinstallationresistance、、、、。1－4。、201439、。。。3～4。①“”②③。25－6。、。。7。A.kilic8－10。11。《GB1499.2—2007》。、、。12－14。。。N.J.Aziz3、15－17。75mm150mm。70%。。18。N.J.Aziz19－21。22mm12.52537.550mm。。37.5mm。、。1JAW－1500kN。1500kN13～60mm220mm。0.096mm/s。22mm500400mm125mm。125mm“”28mm30mm。。1。010161Fig.1Anchoringperformancetestequipment222mm50011.0522.1033.1544.20mm2。312。24Fig.2Fourboltswithdifferentribspacing34。12。。4－5。3Fig.3Boltsafterdrawingtest4Fig.4Boltspulloutafterdrawingtest5－Fig.5Drawingforce-displacementcurvesofboltswithdifferentribspacing1101201439511.05mm22.10mm218.7kN234.0kN7.0%33.15mm235.6kN7.7%44.20mm218.7kN207.2kN5.3%。。。。22mm11.05mm11.05mm22mm、。33.15mm。333.15mm。33.15mm0.420.721.001.221.46mm3。15H2T2、H3T1、H4T2H5T1222℃。1－67。133.15mmTable1Drawingforcedataofboltswithdiffe-rentribheightwhenribspacing33.15mmH1H2H3H4H5/mm0.420.701.001.221.46/kN184.3200.0217.3221.7225.60.42mm184.3kN1.46mm225.6kN0.42mm41.3kN22.4%。6－Fig.6Drawingforce-displacementcurvesofboltswithdifferentribheight210167Fig.7Ｒelationshipcurvebetweendrawingforceandribheightofbolts。1.00mm1.00mm。33.15mm1.00mm。44.1MZ－1。400r/min370r/min。。JN－338JN－338。22mm、50011.05mm、22.15mm2、33.15mm25。“”28mm800mm5mm。MSZ2360800mm。8。33.15mm11.05mm40%。。。。8－Fig.8Boltsinstallationtorque-displacementcurvesofdifferentribparameters4.211.05mm9a。11.05mm。31012014399b～e22.1033.15mm。。22.1033.15mm。9Fig.9Imagesofanchoragetestspecimensaftercutopen4.322mm11.05mm、1.46mm333.15mm、1.00mm32.4m。30mm、2.3m。3MSZ23602300mm。ZMS15、BK－22Tk=0.15με/NYJk4500。。10。30s0.73kN54.8%21s50.8%。33.15mm、1.00mm0.6～0.7kN。5133.15mm10Fig.10Ｒelationcurvesofboltsthrustforceandtime4101611.05mm7.7%。1.00mm。233.15mm11.05mm40%。。333.15mm、1.00mm50%0.73kN。4。1．M．2007256－257．2TheDeepMinedCoalIndustryAdvisoryCommittee．GuidanceontheuseofrockboltstosupportroadwaysincoalminesM/OL．HealthandSafetyExecutive19963－7．http//．hse．gov．uk/pubns/mines02．pdf．3ＲockMechanicsTechnologyLtd．CoalmineroadwaysupportsystemhandbookM．LiverpoolHealthandSafetyExecutive20042－5．4．M．1999．5．、、J．2003224659－663．YangZhenmaoMaNianjieGuanShanyueetal．Ｒeasonablematc-hingofdiametersamongboreholeboltandresinJ．ChineseJour-nalofＲockMechanicsandEngineering2003224659－663．6．D．2011．7．J．1999223－28．LiuMingZhangBingchengXiaoShuyong．Calculationandassur-anceofthespecificprojectedribareaforcrescentribbedbarsJ．MetallurgicalStandardization＆Quality1999223－28．8KlcAYasarEAtisCD．Effectofbarshapeonthepull-outca-pacityoffully-groutedrockboltsJ．TunnellingandUnder-groundSpaceTechnology20031811－6．9ComptonCSOylerDC．Investigationoffullygroutedroofboltsin-stalledunderinsituconditionsA．Proceedingsofthe24thInterna-tionalConferenceonGroundControlinMiningC．Morgantown2005302－312．10．J．2000292170－173．YangChaoLuShiliangJiangYiaodong．Controllingeffectsofsup-portresistanceonroadwaydeformationunderdifferentrockcondi-tionsJ．JournalofChinaUniversityofMining＆Technology2000292170－173．11．J．2008667－70．ZhaoXiaoliChenYingWangXiaofengetal．Experimentalstudyonthebond-anchoragepropertiesfortherebarwithsymmetricallydistributedtransverseribsandtheunsymmetricallyonesinconcreteJ．IndustrialConstruction2008667－70．12．J．2001626－27．WangYunfangWangAnguoQinHongfeietal．Ｒebaranchorde-signJ．Coal2001626－27．13．J．2009315－16．YaoJianwei．Developmentofdextrorotationhot-rollingmineresinanchorsteelbarsJ．ShandongMetallurgy2009315－16．14．J．2002238－39．WuMing’anZhaoWanshunHuangfuTaiping．ThedevelopmentofhotrolledminingtwistedbarJ．ShanxiMetallurgy2002238－39．15AzizNJalalifarHConcalvesJ．BoltsurfaceconfigurationsandloadtransfermechanismA．Proc．7t