《公路隧道抗震设计规范》英文版.docx

JTGIndustnrStandardsOfthePeop1.e'sRepub1.icofChina中华人民共和国行业标准JTG22322019(EN)SpecificationsforSeismicDesignofHighwayTunne1.s公路隧道抗震设计规范(英文版)Issuedate:NoVCmber26.2019Effectivedate:March1,2020IssuedbyMinistryofTransportofthePeop1.e'sRepub1.icofChinaIndustryStandardsofthePeop1.e'sRepub1.icofChina中华人民共和国行业标准SpecificationsforSeismicDesignofHighwayTunne1.s公路隧道抗震设计规范(英文版)JTG22322019(EN)EditingorganizationinChargczChinaMerchantsChongqingCommunicationstechno1.ogyResearch&DesignInstituteCo.1.1.d.IssuingHUthQriIyAIinistryofIransportofthePeop1.e'sRepub1.icofChinaEffectivedae1arh12020ThePeop1.e'sRepub1.icofChinaMinistryofTransportPub1.icNoticeNo.50Pub1.icNoticeonIssuing(heEng1.ishandFrenchVersionsofSevenHighwayEngineeringIndustria1.Standardsinc1.udingSpecificationsforDesignofHighwayTunne1.sSectionICivi1.EngineeringTheEng1.ishandFrenchversionsofSpecificationsforDesignofHighwayTunne1.sSection1Civi1.EngineeringIJTG3370.12018化附.立展1讪由甲JIVD7O-2OO4(E):andJTG3370.12OI8(FR),thcFrenchversionofSpecificationsforDesignofHighwayTunne1.sSection2TrafficEngineeringandAjIia1.edFaci1.ities(JTG1)70/22OI4(R)/.theEng1.ishversionofGuide1.inesfbrDesignof1.ightingofHighwayTunne1.sJTG.TD1.Qf1.-O1.2014(EN).heEng1.ishversionofGuide1.inesforDesignofVenii1.ationofHighwayTunne1.s(JTG,TD702-02-2014(EN),(heEng1.ishversionofSpecificationsforSeismicDesignofHighwayTunne1.sJTG2232201.9(EN).(mdtheEng1.ishversionofTechnica1.SpecificationsofiaintenceJorHighwayTunne1.JJTGH1220I5(EN)areissuedherebyforpromotinginternationa1.COOpCra1.iOnandsharingofstandardsinhighwayengineeringindustry.Thegenera1.administrationandfina1.interpretationofIheforcign1.anguageversionsof1.hcabovementionedstandardsbe1.ongtoMinistryofTransport.whi1.eparticu1.arinterpretationforapp1.icationand11)utineadministrations1.a1.1.beprovidedbyChiiuiMerchantsC1.iongqingCommunicationsTechno1.ogyResearch&DesignInstituteCo.、1.td.Ineventofanyambiguityordiscrepanciesbc1.wcenIhcIbreign1.anguageversionsandChineseversion.heChineseversionshou1.dbereferredandaccepted.COmmenIS,suggcS1.ienSeandshou1.dbeaddressedtoChinaMerchantsChongqingCoinmunica1.ionsTechno1.ogyResearch&DesignInstituteCo.,1.1.d.(AddrcssiInsti1.u1.eofTunne1.andUndergroundEngineering,No.33XuefuAvenue,Code:4(XX)67:E-mai1.:cheng1.iangNan,anDiJUric1.ChongqingPRChina:POSIa1.).Iiisherebyannounced.MinistryofTransportofthePeop1.e'sRepub1.icofChinaSCPtCmbCr20.2023PrintedonSeptember21,2023Genera1.OfficeOfMinistryofTransportadjacenttothestandardpenetration1.estpoinuprovidedthattheuppertx>undisnotabove17groundwatertab1.eandthe1.owerboundisnotbe1.owthe1.iquefactiondepth;W(hehorizoninf1.uenceweightfunctionva1.uc(m-,)ofunitthicknessofsoi1.1.ayeri.1.ftheeva1.uateddepthis15mitsha1.1.betakenasIOwhen(hemidd1.epointofthis1.ayerisntHdeeper(han5m,asOwhenthemidd1.epointisa(15mdep<hndobtainedby1.inearinterpo1.ationmethodwhenitisat5-15mdcpths.1.ftheeva1.uateddepthis20m.i(sha1.1.betakenasIOwhenIhemidd1.epointof(his1.ayerisIKHdeeperthan5m,asOwhenthemidd1.epointisat20mdep<h.andobtainedby1.inearin1.crp>k1.inwhenitisat5-20mdepths.Tab1.e4.4.6Correspondencebetveenground1.iquefactiongradeandI1.quefactioQindexI1.iquttftictiongraik*S1.ightScriou1.iquefactionindexfor15neva1.uateddepth(0,5)(5,15)>151.iquefactionindexfor2Oneva1.uateddepth(0,6)瓜闻>181 .4.6Ineva1.uating(bepotentia1.forearthquake-inducedIiquefaciionxonsiderationsha1.1.begiven1.thedecreaseinCffeCIiVCstressofstratumcausedbythepresenceoftunne1.2 .4.7IftheIiqucfiab1.csoi1.1.ayerisre1.ative1.yf1.atandUnifbrm.appropriatemeasuresagainst1.iquefactionofgroundshou1.dbese1.ectedaccordingto(herequirementsinTab1.e4.4.7.AnyuntreatedIiqucftab1.csoi1.1.ayershou1.dxbeusedasthebearingstratumofnatura1.ground.Tab1.e4.4.7Requiredmeasuresagainst1.iquefactionofgroundSeimicforttHcMticnCMt<V>ySoi1.IiquefoctiontradeS1.ightSbdeniteSoriouiAundRIUrUt<*1Ia1.nftttnnOr1.1.qu>fctf<4-indcd5cttIcicntorIretrrntofur>iundHtmcture(xc1.<*to1.yc1.inirAtc1.i*foctt(m-irvjcrd8ctt1.<wnt.onrtia1.1.yc1.raruteI1qtcti(n-r*0isc1.tkwntttUWX1.OUnd必IAtrtKturtiC<cp1.ete)yC1.i(I1.nat。1.iquefactionIaIUCOdsctt1.c<*>nt.CNorrurcaerrrequire*!rcattheitucturcaiIrOUrK1.or1.r(k<<tKiivtrin)(11OmJuno*.CCBICtebd1.iBirMtdIiqudfEtiorrnd<dscttk<!nt.orpartia1.1.yc1.IfiirviteIiqrfc1.i11-inductctt1.ccntandtreattheWUMmMAtiuctur*.DN>za*u2sMgrwx)u1.aM.MAXuMrrv)u1.rM.Incattbo<ouMandsirvcture.orIeke>thrrccxmicIrUtnIE.3 .4.8Measurestoe1.iminate1.iquefaction-inducedgroundsc(t1.cmcntsha1.1.mcc(hefo1.1.owingrequirements:IThebottomofthefoundationforIUnndSiruciuressha1.1.beembeddedinastab1.esoi1.1.ayerbe1.owthe1.iquefactiondcpth.atdepthsno<1.essthan().5m.Attentionsha1.1.bepaidtotheprotectionI*againstbuoyancyduringearthquake.4 Wherethegroundisreinforcedbyvib11)-ota1.ion.vibr>-cornpaction.g11pactionpi1.es,dynamiccompactionandotherdensiftca(ionmethods,itsha1.1.betreateduptothe1.owerboundofIiquefac1.iondepth.5 Rep1.acea1.1.1.iquefiab1.esoi1.1.ayersWithIKin-Iiquefiab1.esoi1.6 Wherethetunne1.S1.nic1.ureisinaIiqucfiab1.csoi1.1.ayerandtreatedbydcnsificationmethodorsoi1.rep1.acementmchcxi.itstreatmentwidthshou1.dnotbe1.essthanthethicknessofIiqucfiab1.csoi1.1.ayer.1.fthethicknessof(he1.iquefiab1.esoi1.1.ayeris1.essthanthewkithOfIhetunne1.bottomsurface.a1.I1.iquefiab1.esoi1.1.ayerswithinthewidthof(hetunne1.bottomsurfacesha1.1.betreated.IftherearcSoIdiCrpi1.es,continuouswa1.1.sandothersupportstructuresonbothsidesofthefoundationpitofthecut-and-covertunne1.andthewidthof(hestructureis1.ess(hanthethicknessof(he1.iquefiab1.esoi1.1.a>,er.a1.1.1.iquefiab1.esoi1.1.ayerswithintherowpi1.esneedtobetreaedon1.y.buttheso1.dierpi1.essha1.1.passthroughtheIiqucfiab1.esoi1.1.ayers.7 Wherethe(unne1.structureisinaIiquef1.ab1.esoi1.1.ayerandreinforcedbygrouting*gfuiingthicknessshou1.dnotbe1.ess(hanthethicknessoftheIiquct1.ab1.csoi1.1.ayer.8 Embedpermanentenc1.osureintothenon-1.iquefiab1.esoi1.1.ayer.4.4.9 Tomitigatetheimpactofsoi1.1.iquefactiononthefoundationandstruc(ure.thefo1.1.owingmeasuresmaybeincoporate<1.ISe1.ectanappropriatedepthoffoundation.4.4.10 Adjusttheareaoffoundationbottomtoreducefoundationeccentricity.4.4.11 Strengthentheintegrityandstiffnessofthefoundation;4.4.12 Reduce(heIhancctheovera1.1.stiffnessanduniformsymmctr)ofhcAtn1.CIurC,andavoidadoptingStruccura1.typessensitivetodifferentia1.sc1.cmcnt.4.4.13 Tunne1.sshou1.dnotbe1.ocatedinareaswith1.iqefaction-in<1.uced1.atera1.spreadingorf1.ows1.ideoientia!.e.g.pa1.eochanne1.sandareasadjacenttoComeinporaryriverskie.coastsandsideSIopCS.Othcrwisaskidresistancecheckingshou1.dbecarriedout,andmeasurestoresistsoi1.s1.idingorstructura1.crackresistancemeasuressha1.1.beirwoporated.4.4.14 Forthepi1.efoundationofanon-1.iquefiedfbundaiion.theadjustmentcoefficientof(hepermissib1.ebearingcapacityofthepi1.efoundationcanbetakenas1.5whentheseismicca1.cu1.ationiscarriedout.Thcadjustmentcoefficientofthepermissib1.ebearingcapacityoffrictionpi1.ecanbetakenaccordingtothetypeoffoundationsoi1.Whenthe1.oadtestisusedtodeterminethevertica1.bearingcapacityofasing1.epi1.e,thever1.ica1.bearingcapacityofasing1.epi1.ecanbeincreasedby50%,andthehorizo11a1.bearingcapacityofasing1.epi1.ecanbeincreasedby25%.4.4.15 If1.iquefiedsoi1.1.ayersarcidentified,thefo1.1.owingsoi1.parameterssha1.1.berevisedaccordingtothedegreeofIiqucfactionigrounddeformationmodu1.us.groundbedcoefficient,groundbearingcapacityandparametersofbearingCaPaCityof(hesoi1.aroundpi1.es.4.4.16 Thesoi1.parametersofthesoi1.1.ayerjudgedas1.iquefiedshou1.dbecorrectedbymu1.tip1.yingthereductioncoefficientof1.iquefactioneffectof(his1.ayerwhen1.iquefactiondocsnotoccur.Thereductioncoefficientof1.iquefactioneftecimaybeobtainedfromTab1.e4.4.13.Forthesoi1.1.ayerwithareductioncoefficientofO.heresistanceeftectofthesoi1.1.ayersha1.1.notbeinc1.uded.Tab1.e4.4.13ReductionCoefficientfcrsoi1.Iiquefact100effect,C1.iqurfactionresistancerateSoi)1.ayerdepth(ra)ReductionCoefficientC06Wd10O10<d,201/30.8F1.>0.6d101/310<d202/31.0F>0.8d,102/3I(Kd,W2014.4.17 Ifthenumberofb1.owsinSPTisusedtocharacterizethe1.iquefactionresistanceofsoi1.,the1.iquefactionresistancerateinTab1.e4.4.13maybeca1.cu1.atedusingEquation(4.4.14):&=：(4.4.14)whereN1.measuredva1.ueofnumberofb1.owsinS1.yforsitesoi1.：Nethecritica1.va1.ueofnumberofb1.owsinSPTfor1.iquefactioneva1.uation;EarthquakeEffect5.1 Genera1.requirements1 .1.1Earthquakeeffectsonvarioustunne1.structuressha1.1.bedeterminedaccordingtothefo1.1.owingrequirements:IHorizonta1.earthquakeeffectinthedirectionofcrosssectionofthestructuresha1.1.beconsidered.2Fortunne1.sinareaswithseismicfortificationgroundmotionc1.assificationof0.20gormoreand1.arge-spantunne1.swithfbur1.anesormoreinasing1.eIUbe.andwhentheearthquakeeffectcausedbyvertica1.motionissignificant,bothhorizonta1.a1.vertica1.earthquakeeffectsa1.ong(hecross-scc1.ionp1.aneshou1.dbeconsidered.3 ForShie1.djnunersedandcut-aiid-coverIUnnek.bothhorizonta1.earthquakee11ec(sa1.ong(hecross-sectiontransversedirectionandthoseinIhe1.ongitudina1.directiona1.ongthetunne1.axissha1.1.beconsidered.4 .1.2Determinationofgroundmotionparametersforseismicdesignoftunne1.structuressha1.1.meetthefo1.1.owingrequirements:IForC1.assAtunne1.sandextra-1.ongtunne1.s1.ocatedinareaswithseismicfortificationgroundmotionc1.assificationof0.40g.theParan忙IerSsha1.1.bedeterminedaccordingtosite-specificseismicsafetyeva1.uationresu1.ts.5 Fortunne1.sthathavepcrR>rmedsi1.c-spccificseismicsafetyeva1.uation,1.hcparameterssha1.1.bedeterminedaccordingtotheeva1.uationresu1.ts.6 ForotherIunneIsJhcgroundmotionparameters11utybedeterminedbasedonthecurrentSeismicGroundMotionParametersZonationMapfChina(GB183O6)usingre1.evantPrOViSiOnSoftheseSpecifications7 .1.3Iftherearcseismogenicfau1.tswithinthetunne1.siteareaandIOkmbeyonditsperiphery,seismicsafetyeva1.uationisrecommendedtobeperformedfortheengineeringsitc.Scismicsafetyeva1.uationfortheengineeringsiteshou1.dbecarriedoutifthereareseismogenicfau1.tsthatmightgenerateanearthquakeofmagnitudeofnot1.essthan6.5ontheRichtcrsca1.ewithinthetunne1.siteareaand5kmbeyonditsperiphery.5.2 Horizonta1.earthquakeeffect5.2.1 Whenthestaticmethodisusedtorseismicca1.cu1.ation.thehorizonta1.designpeakgrounda(xe1.era1.in.A.a1.g11)undsurfacesha1.1.bedeterminedusingtheequationsbe1.ow:A=C,A(5.2.1-1)Ah=C1.A(5.2.1-2)whereCgsiteadjus(11)e11coefficientofseismicPeakgroundacce1.emion.tobedeterminedbypiecewise1.inearinterpo1.ationbasedonva1.uesgiveninTab1.e5.2.kwbcnthegroundmotionparametersadoptedapp1.y(oIhCtunne1.sitc,C8=1.0;Anhorizo11a1.designseismicpeakgroundacce1.e11i(iona1.thesurfaceofC1.assII1.sitc(g)zCseismicimportancecocfficicnt.obtaincdfromTab1.e3.1.5oftheseSpecifications;Ahorizonta1.basicseismicPeakgroundacce1.erationat(hesurfaceofC1.assIIsite,5.2.2obtainedfromhecurrentSeismicGroundMotionParametersZonationMapofChina(GB18306);hrixonta1.deignKQi皿icp11nkgroundncc<*IorntionntthekumccofC1.assI1.site,in11)SitQcategoryI.hII111IV0.050.72。加1.001.301.250.IO0.740.82I.OO1.251.200.150.750.831.001.151.Io0.200.760.851.OO1.001.000.300.850灰1.OO1.000.95BDIO0.901.001.OO1.000.00Tab1.e5.2.1Siteadjustaentcoefficientofseiicpeakgroundacce1.eration*CeWhentheresponsedisp1.acene11methodisused.(hehocizoma1.designseismicPeakdisp1.acementumaxa(grou1.surfacesha1.1.bedetenninedusing(heequationsbe1.ow：Tunne1.Porta1.s13.1 Genera1.requirements13.1.1 Cut-and-covcrorreinforcedconcretetunne1.POrtSkshou1.dbese1.ectedandarrangedpeendicu1.ar(o1.hes1.opesurfacewhereverpossib1.e13.1.2 ThedesignofIhe(nne1.PoHa1.sha1.1.minimizediVinbance(othemounuinasmuchasPoSSib1.e.andIneaSUreSsha1.1.betaken(ocontro1.(heheightofIhesideandfronts1.ope.13.1.3 Ihcntheterraina1.Iheporta1.issteep,/orthesideandfrontSIUPe1.acksinstabi1.ity,measuressuchas.1.engtheningthecut-and-coverIunnc1.appropriatcIyincreasingthethicknessofbackfi1.1.onthecut-and-covcrtunnc1.andprovidingactiveorpassiveprotectionnetsshou1.dbetakentopreventfa1.1.ingrockfromhittingthecut-and-covcrcunnc1.13.2 Seismicresponseca1.cu1.ationandcheck13.2.1 Staticmchodshou1.dbeadoptedforseismicresponseca1.cu1.ationoftunne1.porta1.s.13.2.2 Thestrengthcheckingofthecuiand-coverporta1.isheSameasIha1.of(hecut-ax1.-<overstructureandsha1.1.becarriedoutinaccordanceWi1.h(here1.evantprovisionsinSection93herein.Seismicresponseca1.cu1.ationofawa1.1.-typePorta1.sha1.1.becarriedoutaccordingtoAppendixA.3hcrcin4anditsseismicchecksha1.1.becarriedoutaccording(oSection8.4herein.1.2ninsoi1.4Whentheporta1.wa1.1.iswidc.orthegroundconditionsarchigh1.yVariabIC,seismicjointssha1.1.beprovidcd.Thcseismicjointsshou1.dbeconsideredinconjunctionwithsett1.ementjointsandarrangedataspacingofnotmorethanIOm.«AppendixAStaticMethodA.1Modifiedstaticmethod.1.1.When(hestaticmethodisusedforca1.c1.ation.(heearthquakeeffecisha1.1.inc1.udeIhreeComponcn1.szcarthquakcinertiaforcefrom1.iningsc!f-wcight.carthquakcinertiaforcefromover1.yingsoi1.co1.umnandincrementinearthquake-induced1.atera1.earthpressurc(Fig.A.1.1.).Fig.A.1.1Diagramofmodifiedstaticmethodforca1.cu1.ationA.1.2Horizon1.a1.andvertica1.earthquakeeffectsfrom1.iningse1.f-weightsha1.1.beca1.cu1.atedusingEqs.(A.i.2-1)and(A.1.2-2)trcspcc(ivc1.y.Eh=A,m<,=C1C,Am(A.1.2-I)E=KA1.m;.=KGC,A>n(A.1.2-2)WhereC,seismicin<rtanceCoeft1.cienuobtainedfromTab1.e3.1.5herein;C,siteadjustmentcoefficientofseismicpeakgroundaccc1.cration.ob(aincdfromTab1.e5.2.1 herein;Apeakacce1.erationofthehorizonta1.basicgroundmotion;mweighta1.ca1.cu1.a1.iimpointofIunnc1.1.ining(kg):Kratioofvertica1.Peakgroundacce1.eration(ohorizonta1.peakgroundacce1.eration.obtainedfromTab1.e5.3.1herein.A.1.3Inca1.cu1.ating(heearthquakeinertiaforceofover1.yingsoi1.co1.urnn.i(isassumedtoacton1.hesoi1.unitcent11)id(Pig.A.1.1handitsva1.uesha1.1.beca1.cu1.atedfn>mEqs.(A.1.3-1(A.1.3-3).1.nca1.cu1.atingstructura1.interna1.forcc.thcshifttheoremmaybeapp1.iedtosimp1.ifythisearthquakeinertiainto1.a1.forcesandbendingmomentsactingontheupperha1.fofthe1.ining.Horizonta1.earthquakeeffectofover1.yingsoi1.co1.umn:Fih=A1.QtgVertica1.ea11hqakeeffec<ofover1.yingsoi1.co1.umn:(A.13-2)F=KAIQ/gVertica1.earthpressureofover1.yingsoi1.co1.umn.02hB(Ash2+X2h2)tane0(A.1.3-3)whereA.peakacce1.erationofthehorizonta1.designseismicIno1.iOn,obtainedfromAiiic1.e5.2.1herein;ggravitationa1.accc1.erati0n(5cncra1.1.y9.8ms2):一unitweightofSUrroUndingrOCk(kN/n?)：h1.-height(m)f(heover1.yingsoi1.Co1.Umn.whichShaHbedetemnnedbasedonIheequiva1.entca1.cu1.a