单根锚杆不同工作载荷下支护应力场特征相似模拟研究林健

1231231231231231.1000132.1000133.100013。3“”。。2。1/4。。TD315A1006-6225201505-0087-06AnalogueSimulationofSupportingStressFieldCharacteristicofSingleAnchoredBoltunderDifferentWorkingLoadsLINJian123WANGYang123YANGJing-he123WANGZheng-sheng123CAIJia-fang1231.CoalMining＆DesigningDepartmentTiandiScience＆TechnologyCo.Ltd.Beijing100013China2.CoalMining＆DesigningBranchChinaCoalＲesearchInstituteBeijing100013China3.StateKeyLaboratoryofCoalＲesourceHigh-efficiencyMining＆CleanUtilizationChinaCoalＲesearchInstituteBeijing100013ChinaAbstractApplyinganaloguesimulationsurroundingrocklateralandverticalstressfielddistributioncharacteristicofsingleanchoredboltwastestunderdifferentworkingloads.Ｒesultsshowedthataxialstressfieldwascomposedofcompressionstresscorezoneanddiffusionzone.Corezonewaslocatedinanchoredbodywhichwasnearanchoredboltincluded3compressionstresszonesandtookon“alcoholburner”shapedistribution.Withworkingloadincreasedstressvalueanddistributionrangeofaxialstressfieldalongverticaldirectionobviouslyrosebutalongaxialdirectionstressdistributionrangekeptbasicallyinvariablealthoughstressvalueincreasedlargely.Lateralstressfieldformed2compressionstresszonesalongaxialdirectionshallowstressconcentrationzonetookoninvertedbowlshapeunderplateandtheotherstressconcentrationzonetookonerectbowlshapenearanchoragesection.Wholestressvalueoflateralstressfieldwassmallonly1/4ofaxialstress.Withworkingloadincreasinglateralstressconcentrationzones’rangeexpand-edandstressvaluerosecontinuouslybuttheirlocationandshapevariedslightly.Keywordssingleanchoredboltworkingloadsupportingstressfieldanaloguesimulation2015－05－14DOI10.13532/j.cnki.cn11－3677/td.2015.05.024U12612112012BAK04B062013MS0101969－。.J.201520587－92.、。。。。。、78205126201510COALMININGTECHNOLOGYVol.20No.5SeriesNo.126October2015、、、1－7。。、、。。8－10FLAC3D、、、、、、、。11FLAC3D。12FLAC3D、。13。14。15。16。、、、。11.1300mm×300mm×300mm1∶6Cγ1CE1∶6CF1∶216Cσ1∶6。。20～30MPa3.3～5MPa。∶=1.5∶8.528d3.75MPa。1.22300mm×300mm×150mm。1.3M10500mm51kN。40mm×40mm×10mm12mmM10。1.4。。SZ120－3AA、3mm2mm120Ω。320mm70mm120mm21。60PYJZA－321。。BK－1A3tk=0.09με/NYJZA－16。1.5。3500N900N2kN88126201551108kN194.4kN432kN。22。220mm。4。110～70mm500N0.06MPa0.36MPa。70mm。420mm。。2270～190mm500N0.0134MPa0.08MPa。。33190～250mm20.0236MPa0.14MPa。。44250mm。70mm500N“－－－－”。37.5mm37.5mm037.5～130mm0.0133MPa130～170mm0.0033MPa170～230mm0.0034MPa230mm。。120mm500N9820155“－－－”。43mm43mm043～330mm70mm0.0067MPa110～190mm0.0034MPa190～230mm230mm。。3。33a3“”。、。。40mm×40mm×10mm124mm3.1。170°35°70mm420mm500N0.01MPa184mm1100mm4.61112mm670mm。2112～180mm0.01MPa74mm444mm1.85。3180～250mm0.01MPa74～100mm444～600mm。3b、ca3。。34。20mm。500N310～70mm0912620155430mm0.0135MPa22.5%。。270～190mm0.0034MPa25.4%。3190～270mm220mm230mm0.027MPa1.14。3。70mm500N“－－－－”。70mm30mm0.0033MPa24.4%70mm70～150mm150～230mm220mm“”190mm0.0033MPa230～300mm“”。。70mm110mm“”。120mm。500N40～30mm30～150mm110mm0.0067MPa150～190mm190～300mm230mm0.0067MPa。2。2。5。5a500N2。“”0.01MPa80mm242mm1920155230mm10mm2“”0.027MPa。221/4～1/8。5。41。23“”。3。。。42。“”“”。51/4。。1.J.2010294649－664.2.J.200732121233－1238.3.J.201029101977－1987.4.J.200712347－50.5.J.20144245－8.6.J.20093491153－1159.7.“”J.201318143－46.8.J.200833121329－1335.9.J.200934121585－1593.22291262015553.2SGZ1000/2×1000SGZ1200/2×1000。3.3kV、CST、TTT4。700kW、。TTTCSTTTTCST。、、3300V。3.3。、。411070%6Mt。2、200m、3000m。3、3.5m。4ZF16000/23/421403mm、。5。1.J.20144291－621.2.J.201442930－3439.3.J.201442957－60.4.J.2011361145－151.5.J.201442995－98103.6.J.200611528－29.7．J.20081345－8.8.J.200914413－15.9.“”D.2013.檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿9210.J.2007327680－685.11.－J.2010356881－886.12.D.2007.13.A.C..1990.14.J.2000S1917－921.15.J.2004S2260－264.16.J.20143981521－1529.2212620155