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322Vol.32No.2201503JournalofMining&SafetyEngineeringMar.20151673-3363-(2015)02-0273-061(100013)1.46mm1.20mm11mm30mm3mm10mm50%TD353ADOI10.13545/j.cnki.jmse.2015.02.016Numericalsimulationoptimizationresearchofboltprofileconfigurationwithresinfull-lengthanchoringLINJianRENShuo(CoalMiningandDesignDepartmentTiandiScienceandTechnologyCo.LtdBeijing100013China)AbstractBoltingwithresinfull-lengthanchorandhighprestressisaneffectivemeanstosolvesup-portproblemofcomplexanddifficultroadway,butitsapplicationandpromotionhavealwaysbeenre-strictedduetotheconstructiondifficulties.Thispaperiscommittedtosolvingthedifficultproblemofcoalmineroadwayfull-lengthanchoringthroughoptimizedanchorshapeunderthepremiseoftheguaranteeofanchorperformance.Thenumericalsimulationmethodshavebeenusedtoresearchthere-lationshipbetweentheboltshapeandanchorageboltperformance.Optimizedboltcrossribheightisreducedfrom1.46mmto1.20mm;boltcrossribspacingisincreasedfrom11mmto30mm;andtheboltcrossribwidthisincreasedfrom3mmto10mm.Theoptimizedboltshearingresistanceisreducedbyabout50%undertheconditionofnotreducingintheanchorageperformance.Consequently,mixingeffectisideal,achievingthegoaloftheoptimization.Keywordsfull-lengthanchorboltcrossribspacingboltcrossribheightboltcrossribwidthnumericalsimulationoptimization2013-07-12(2012BAB13B02)(KJ-2013-TDKC-07)(1969)E-maillinjian_w@163.comTel010-8426412732274[1-3]3~42[4-5][6]A.kilic[7-9][10](GB1499.22007)[11-13]N.J.Aziz3[14-16]75mm150mm70%2[17]N.J.Aziz[18-20]22mm12.52537.550mm37.5mmANSYS11.1ANSYSSOLID95175mm22mmSOLID9528mm50mm130mmSOLID652275125mm1.21CONTA174TARGE170Bonded(always)CONTA174TARGE170Standard0.3517MPa1Table1Mechanicalparametersofmodeldrawingtestsimulation/MPa/MPa/MPa/GPa/MPa800.30.35161710008000.30.3520010008000.30.352001.30~400kN(kbc0)2-2%1.41)11.0522.1033.1544.20mm2)33.15mm0.40.81.21.62.0mm3)33.15mm36912151821mm2125mm4200kN120155.56313.33466.67632.2277.77233.33388.60544.45700(a)11.05mm(b)22.10mm(c)33.15mm(d)44.20mm/MPa0155.56313.33466.67632.2277.77233.33388.60544.45700/MPa0155.56313.33466.67632.2277.77233.33388.60544.45700/MPa0155.56313.33466.67632.2277.77233.33388.60544.45700/MPa1200kNFig.1Boltequivalentstressnephogramofdifferentribspacingofboltsunderpull200kN32276020406080100120130100200300400500550/mm11.0522.1033.1544.20/mm2200kNFig.2Equivalentstressdistributioncurvealongtheboltaxialdirectionofdifferentribspacingunder200kN12200kN2433.15mm33.15mm2Table2Boltwithdifferentribspacingpulloutdata/mm11.0522.1033.1544.20/kN221230237216333.15mm0.40.81.21.62.0mm200kN3mises/MPa3200kNFig.3Equivalentstressdistributioncurvealongtheboltaxialdirectionofdifferentribheightunder200kN330.4mm200kN200kN31.20mm1.20mm3Table3Boltwithdifferentribheightpulloutdata/mm0.40.81.21.62.0/kN205218236240242433.15mm1.20mm36912151821mm(44)33.15mm1.20mm9mm12mm4Table4Boltswithdifferentribwidthpulloutdata/mm36912151821/kN236240246245232228223/kN4Fig.4Relationcurvebetweenribwidthanddrawingforce227755.1MZ-1540%/(N·m)5-Fig.5Boltsinstallationtorque-displacementcurve5.266a6b6Fig.6Imagesofanchoragetestspecimensaftercutopen5.322.4m30mm2.3m3MSZ23602300mmZMS15OBK-2(20kNk=0.15με/N)YJk4500730s0.73kN54.8%0200400600800100012001400510152025302004006008001000/s(a)(b)07Fig.7Relationcurveofboltsthrustforceandtime61)2)433.15mm30mm3)1.20mm1.20mm4)33.15mm1.20mm9mm12mm10mm5)32278[1][M]2007256-257[2]RockMechanicsTechnologyLtdCoalmineroadwaysupportsystemhandbook[M]HealthandSafetyExecu-tive20042-5[3][M]19995-6[4][J]200322(4)659-663YANGZhenmaoMANianjieGUANShanyueetalReasonablematchingofdiametersamongboreholeboltandresin[J]ChineseJournalofRockMechanicsandEngineering200322(4)659-663[5][D]2011[6][J]1999(2)23-28LIUMingZHANGBingchengXIAOShuyongCalculationandassuranceofthespecificpro-jectedribareaforcrescentribbedbars[J]MetallurgicalStandardization&Quality1999(2)23-28[7]KILICAYASAREATISCDEffectofbarshapeonthepull-outcapacityoffully-groutedrockbolts[J]TunnellingandUndergroundSpaceTechnology200318(1)1-6[8]COMPTONCSOYLERDCInvestigationoffullygroutedroofboltsinstalledunderinsitucondi-tions[C]//Proceedingsofthe24thInternationalConfer-enceonGroundControlinMiningMorgantown2005302-312[9][J]200029(2)170-173YANGChaoLUShiliangJIANGYiaodongControllingeffectsofsupportresistanceonroadwaydeformationun-derdifferentrockconditions[J]JournalofChinaUni-versityofMining&Technology200029(2)170-173[10][J]2008(6)67-70ZHAOXiaoliCHENYingWANGXiaofengetalExperimentalstudyonthebond-anchoragepropertiesfortherebarwithsymmetricallydistributedtransverseribsandtheunasymmetricallyonesinconcrete[J]IndustrialConstruction2008(6)67-70[11][J]2001(6)26-27WANGYunfangWANGAnguoQINHongfeietalRebaranchordesign[J]Coal2001(6)26-27[12][J]2009(3)15-16YAOJianweiDevelopmentofdextrorotationhot-rollingmineresinanchorsteelbars[J]ShandongMetallurgy2009(3)15-16[13][J]2002(2)38-39WUMing’anZHAOWanshunHUANGFUTaipingThedevelopmentofhotrolledminingtwistedbar[J]ShanxiMetallurgy2002(2)38-39[14]AZIZNJALALIFARHCONCALVESJBoltsurfaceconfigurationsandloadtransfermechanism[C]//Proc7thUndergroundCoalOperatorsConferenceWollongong2006236-244[15]AZ