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200966(129)JOURNALOFRAILWAYENGINEERINGSOCIETYJun2009NO.6(Ser.129)X:2009-03-31XX:,1968,,:1006-2106(2009)06-0009-04XXX(,430063)::,,,,:,,250km/h300km/h,:;;:U212:AResearchontheFeasibilityofFurtherSpeed-raiseofNingbo-Taizhou-WenzhouRailwayQIUWen-zhan(ChinaRailwaySiyuanSurveyandDesignGroupCo.Ltd,Wuhan,Hubei430063,China)Abstract:Researchpurposes:ThroughreferencetotheoperationpracticeofsimilarrailwayandbasedontheengineeringandgeologicalcharacteristicsofNingbo-Taizhou-WenzhouRailway,allinfluencefactorsonspeed-raiseoftherailwayareanalyzed,themeasurestobetakenandtheproblemstobestudiedareofferedandthefeasibilityoffurtherspeed-raiseoftherailwayisverified.Researchconclusions:Throughanalyzingtheconstructionstandardsandtechnicalmeasuresforvariousinfrastructuresandauxiliaryprojects,tofurtherraisetherailwayspeedisfeasible.Byadjustingpartialballastthickness,improvingthegradesofballastandreinforcingthesubgrade,thegoalofrunning250km/htraincanbeachieved.Onthewhole,transportationorganizationandvariousengineeringtechnologycanadapttotherequirementofrunning300km/htraininfuture,buttransportationpatternandsignalingsystemshouldbefurtherstudiedandperfected.Keywords:Ningbo-Taizhou-WenzhouRailway;speed-raise;feasibility,,,,,,,283.38km200510,20091([2005]623),:I,4500m,200km/h()120km/h,4.6m2,,,,,;,,,,,,,;,,,,,,,,3250km/h,350km/h,,;282km/h,250km/h;250km/h,,250km/h3.1250km/h3.1.1(160km/h)(200km/h),200km/h250km/h3.1.1.1200250,250km/h2003.1.1.2,(),,250km/h3.1.2,200km/h250km/h;,3.2250km/h3.2.1200km/h30cm,250km/h35cm;3.2.2,,()200km/h15cm,8cm,4cm;,CFG,,200km/h;250km/h10cm,5cm,3cm,,,,250km/h,4300km/h,,;,300km/h,0120096,300km/h(2030)(120km/h250km/h)300km/h,4.14.1.158(11300km/h)19300km/h,,200km/h,300km/h120km/h;4min,,44,4.1.2,,,300km/h120km/h2,2,4.24.2.1([2008]148),(200250km/h)(80km/h120km/h)300350([2007]47),40mm60mm70mm100mm4,300km/h[2007]47[2008]148,100mm70mm6km3113.46km(26000m14500m),4500m(105mm)279km/h,5000m(105mm)295km/h,5000m300km/h,6000m250km/h,236km,,300km/h227.8km(109km),80.7%,85.3%4.2.24.6m(300km/h4.8m),92m2(300km/h100m2)64.4m,CRH2250km/h(1.02m),300km/h4.5m,1.2m,350km/h;,300km/h,,300km/h,,4.6m300km/h4.2.3250km/h,250km/h,;,,,,300km/h,116:4.2.4250km/h,,,,,,4.34.3.1CTCS-2([2008]19),CTCS-3250350km/h,CTCS-2300km/h;CTCS-2,300km/h,CTCS-2300km,,250km/h,300km/h,300km,,300km/h4.3.2,,AT220kVCTS-150(25kN)JTMH-120(20kN)300km/h3min,,5,,,250km/h,;,200km/h,250km/h,300km/h,;,300km/h;,:[1][2005]623,[S].[2][2007]1384,[S].[3],.[Z].:,2004.[4],.[Z].:,2005.[5],.250km/h[Z].:,2008.[6][2008]148,[S].()2120096