文章编号:1673-0291(2023)01-0035-10DOI:10.11860/j.issn.1673-0291.20220116第47卷第1期2023年2月Vol.47No.1Feb.2023北京交通大学学报JOURNALOFBEIJINGJIAOTONGUNIVERSITY客货混运线路外轨超高理论研究与现场测试分析姜金凤1,2(1.北京交通大学土木建筑工程学院,北京100044;2.青岛市交通运输局,山东青岛266000)摘要:针对客货混运重载铁路小半径曲线地段超高设置问题,基于UM软件和动力学理论建立考虑多车效应的列车-轨道耦合动力学模型,结合现场动态测试试验,研究曲线超高对重载列车和客车动力响应的影响规律,提出超高调整方案,并开展现场验证,对比分析超高调整前后列车通过曲线时轨道系统动力响应的变化规律.研究结果表明,客货混运重载铁路小半径曲线地段不合理的超高设置是线路病害多、养护维修量大的主要因素之一;在满足规范要求的前提下,建议应更多从重载列车角度合理设置曲线超高,当在既有超高为105mm的基础上降低10%时,对改善轨道结构的受力条件和动力响应,减缓轮轨磨耗有明显效果.关键词:客货混运;重载铁路;曲线超高;多车模型;动力学;现场测试中图分类号:U216.42文献标志码:ATheoreticalresearchandfieldtestanalysisofcurvesuperelevationinmixedtrafficofpassengerandheavyhaulfreightrailwayJIANGJinfeng1,2(1.SchoolofCivilEngineering,BeijingJiaotongUniversity,Beijing100044,China;2.QingdaoMunicipalTransportBureau,QingdaoShandong266000,China)Abstract:Toaddresstheissueofsuperelevationsettinginsharpcurvesectionsofmixedtrafficofpassen⁃gerandheavyhaulfreightrailways,atrain-trackcouplingdynamicmodelisestablishedusingUniversalMechanismanddynamictheory,takingintoaccountthemulti-vehicleeffect.Fielddynamictestsarecon⁃ductedtostudytheinfluenceofcurvesuperelevationonthedynamicresponseofheavyhaultrainsandpassengertrains.Anadjustmentschemeforsuperelevationisproposed,andfieldtestverificationiscar⁃riedouttoanalyzeandcomparethedynamicresponseofthetracksystembeforeandaftersuperelevationadjustment.Theresultsshowthatunreasonablesuperelevationinsharpcurvesectionsofmixedtrafficofpassengerandheavyhaulfreightrailwaysisoneofthemainfactorscausingmoredefectsandheavymain⁃tenance.Therefore,itissuggestedtosetthecurvesuperelevationmorereasonabl...