深圳地铁11号线大直径盾构适应性设计-陈馈

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522(361)20154Vol.52,No.2,Total.No.361Apr.201511MODERNTUNNELLINGTECHNOLOGY1,22(1,30019;2,450001),,11φ6.98m。1111301、,、、、,,。:U455.43:A:1009-6582(2015)02-0166-08:2014-03-07:(No.2014CB046906);(No.2011DFB71550);(No.2012AA041801).:(1963-),,,,,,E-mail:18638854067@163.com.DOI:10.13807/j.cnki.mtt.2015.02.0251,,,,120km/h[1,2]。,、。,,,。,3.5km,5.4m6.0m,6.28m6.98m。11,,,。,(),51.681km,。1111301—(—)6.98m,、、,。211—1,YCK3+428.13~YCK8+876.05,5447.92m,、、。,3548m,4φ6.98m。2.1,,,、,、。,、。。—,N166Vol.52,No.2,Total.No.361Apr.201511522(361)20154MODERNTUNNELLINGTECHNOLOGY20.9,;N37.3,;N57.3,。、,92.5~131.0MPa,108MPa。,“,”,,(2.0mm)(0.075mm),。,。:、、()、、、、、、。2.2,、、。;;—。,——。0.10~8.20m,2.75~6.65m。,—、。、、,、,。,,,,2576.6m3/d,45.73~489.46m3/d·m。2.3,,92.5~131.0MPa,108MPa;、,。,,[3]。,。,,,(1),、;,。1Fig.1Cuttingtoolfailureinaboulderformation,,,。、。,,,[4,5]。,,。:(1),。、、,,,,,,。(2),,,。,、、,,,,,。(3),。CK7+450~CK7+710、,60m,200。K5+083~K5+480、K7+470~K7+870。43.9~135MPa,80MPa。。167522(361)20154Vol.52,No.2,Total.No.361Apr.201511MODERNTUNNELLINGTECHNOLOGY[6],,,,,(、)(2)。2Fig.2Deepholepresplittingblastingandcuttingtoolfailure、,,、,,。,,。,,。:(1)、,(3),,,,,。,,。3Fig.3Mudcakingoncutterheadinclaystrata,,。,,,,。(2),。,()。,,。(3),。(),、、,,[7,8]:①、、、,;②;③,,;④,。(1)。,、,,,。(2),。、,、,、,。(3),。、、。3。1111301—,,φ6.98m。φ6.98m,,。3.1,,,;,168Vol.52,No.2,Total.No.361Apr.201511522(361)20154MODERNTUNNELLINGTECHNOLOGY;,。,,(3.6rpm),,7806kN·m,9757kN·m,23,。1。1Table1Technicalparametersofthemaindrive3.2+,,,。33%,38%。,,。,、,6、2,。176,1738,50,2。,120MPa,。4。4Fig.4Schematicofthecutterheadconfiguration,,,,,、[9],90mm,80mm,75mm,。4,。。,(5)。5(:mm)Fig.5Convertiblecutterbase(Unit:mm),,10mm,:(1)L,5(38#~43#),11mm、10mm、8.8mm、7.6mm、5.1mm;(2)L,5,(1)。6。、,、250mm(7),,,/7/kW1120/rpm1.37/rpm3.6/(kN·m)7806/(kN·m)9757/h≥10000/3/4/MPa0.45169522(361)20154Vol.52,No.2,Total.No.361Apr.201511MODERNTUNNELLINGTECHNOLOGY6(:mm)Fig.6Heighteningplanofsidecutters(Unit:mm)7(:mm)Fig.7Heavycutters(Unit:mm)。3.3,:(1),,,、、φ6950mm、φ6940mm、φ6930mm;(2),;(3)3,0.5MPa;(4),;(5)。3.4900mm,25r/min,350mm×530mm,210kN·m,。,,。(8),,,。8Fig.8Replaceablewear-resistingblock、,“”,。,:(1)2,。(2),,。(3),,。3.5,6,,,。,(9)。,,,,。,,。170Vol.52,No.2,Total.No.361Apr.201511522(361)20154MODERNTUNNELLINGTECHNOLOGY9Fig.9Disassemblyoffoaminjectionoutletassembly,,,。,。,,。,,。,,。[10]。4、、。,1111301。、、,。4.1(1),(6.28mLO-VAT1200kW),7200kW,1400kW。(2),4.5rpm,(φ6.28m6.1rpm)。(3)。23%,(315kW、210kN·m)φ6.28m(315kW、225kN·m)。,。4.2(1)38%,,(43%~50%),,、。(2),,,。(3),,。(4),。,。(5),。4.3(1),40mm,。,。“+”。(2),。(3)。4.4[11],。,,。,,,。4.5(1)(45)。(2)171522(361)20154Vol.52,No.2,Total.No.361Apr.201511MODERNTUNNELLINGTECHNOLOGY,。,,。(3)。5,11φ6.98m。1111301—、,、。,,、、,,。,。References[1].[J].,2010,10(2):12-16WangQingyun.OnUrbanRailTransitDevelopmentofChina[J].JournalofTransportationSystemsEngineeringandInformationTechnology,2010,10(2):12-16.[2].[J].,2011,14(8):5-7LiXiao.OnChina'sUrbanRailTransitduringthe12thFive-YearPlanPeriod[J].UrbanMassTransit,2011,14(8):5-7[3].[J].,2012,32(4):571-575WangPenghua.TreatmentofBouldersEncounteredinShieldTunnelingunderDifferentGeologicalConditions[J].TunnelCon-struction,2012,32(4):571-575[4].[J].,2012,49(4):184-191LiaoHongyan.TreatmentSchemeforHardRockEncounteredbytheShied-DrivenTunnelinMixStrata[J].ModernTunnellingTechnology,2012,49(4):184-191[5],,,.[J].,2006,25(S2):3945-3952TanZhongsheng,HongKairong,WanJianglin,etal.StudyonCompositeShieldandConstructionTechniqueinComplexUnevenStrata[J].ChineseJournalofRockMechanicsandEngineering,2006,25(S2):3945-3952[6],,,.[J].,2014,51(1):82-89ChenSiyang,ZhuYanpeng,LiZhong,etal.AnalysisofLateralSlopeStabilityDuringConstructionofaLoessTunnelwithaLargeSection[J].ModernTunnellingTechnology,2014,51(1):82-89[7],,,.[J].,2013,37(3):66-71WangZhenfei,ZhangChengping,ZhangDingli,etal.WearingandAdaptabilityofCuttingToolsforLargeDiameterShieldinWater-RichSandyGravelStratum[J].JournalofBeijingJiaotongUniversity,2013,37(3):66-71[8],,.[J].,2014,51(1):171-178SunFufeng,LiuTao,LeiGang.ResearchontheApplicabilityofADECO-RSinaWater-RichSandStratum[J].ModernTunnellingTechnology,2014,51(1):171-178[9],,.[J].(),2011,42(4):954-959XiaYimin,XueJing,ZhouXiwen.RockFragmentationProcessandCuttingCharacteristicsonShieldCutter[J].JournalofCentralSouthUniversity,2011,42(4):954-959[10].[J].,2011,48(4):65-71HuangDezhong.ResearchofSoilImprovementduringSuperLargeDiameterEarthPressureBalancedShieldConsruction[J].ModernTunnellingTechnology,2011,48(4):65-71[11],,,.NHI/NFM[J].,2013(06):94-96QinLi-xue,XuHui,MaShitao,etal.NHI/NFMtheBentonAirTBMSlurrySystem[J].ConstructionMachinery,2013(6):94-96172Vol.52,No.2,Total.No.361Apr.201511522(361)20154MODERNTUNNELLINGTECHNOLOGYAdaptabilityDesignforaLarge-DiameterShieldUsedinShenzhenMetroLine11ChenKui1,2FengHuanhuan2(1TianjinUniversity,Tianjin300019;2StateKeyLaboratoryofShieldMachineandBoringTechnology,Zhengzhou450001)AbstractDuetotherequirementofhigherrunningspeeds,large-diametershieldtunnellingisatrendforfutureurbanmetrotunnels,andtheφ6.98mlarge-diameterEPBshieldwasfirstusedintheconstructionofShenzhenMetroline11.ThispaperexaminestheconstructiondifficuiltiesinLot11301ofShenzhenMetroline11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