城市轨道交通钢轨的高速维护

HighSpeedMaintenanceforRails城市轨道交通钢轨的高速维护---VosslohHSG-CityGrindingMachine福斯罗城轨高速打磨车12HighSpeedMaintenanceforRails城市轨道交通钢轨的高速维护Content内容ThemainproblemsandstatusofrailmaintenanceinUTS城市轨道交通中钢轨的主要问题及维护现状HighSpeedGrinding(HSG)technology高速打磨技术VosslohandthecoretechnologyadvantagesofHSG福斯罗公司及高速打磨技术的核心优势+++3HighSpeedMaintenanceforRails城市轨道交通钢轨的高速维护Content内容ThemainproblemsandstatusofrailmaintenanceinUTS城市轨道交通中钢轨的主要问题与维护现状Influencefactorsofthewheel/railrelationshipinUTS城市轨道交通中影响轮轨关系的因素Problemsandchallengesofrailmaintenance钢轨维护遇到的问题和挑战Existingmaintenancemethodsandeffects现有的钢轨维护手段和维护效果HighSpeedGrinding(HSG)technology高速打磨技术VosslohandthecoretechnologyadvantagesofHSG福斯罗公司及高速打磨技术的核心优势++-InfluenceFactorsofthewheel/railrelationshipinUTS城市轨道交通中影响轮轨关系的因素Railvehicle车辆Load载重Speed速度Linegeometry线路几何尺寸Weldingjoint钢轨焊接接头Rail钢轨Fasteningsystems扣件Railsleeper轨枕Tracksubgrade路基Environment环境45HighSpeedMaintenanceforRails城市轨道交通钢轨的高速维护Inhalt内容ThemainproblemsandstatusofrailmaintenanceinUTS城市轨道交通中钢轨的主要问题及维护的现状Influencefactorsofthewheel/railrelationshipinUTS城市轨道交通中影响轮轨关系的因素Problemsandchallengesofrailmaintenance钢轨维护遇到的问题和挑战Existingmaintenancemethodsandeffects现有的钢轨维护手段和维护效果HighSpeedGrinding(HSG)technology高速打磨技术VosslohandthecoretechnologyadvantagesofHSG福斯罗公司及在高速打磨技术的核心优势++-Problemsandchallengesofrailmaintenance钢轨维护遇到的问题和挑战Linemileagerapidgrowth线路里程迅速增长Fasterrunningspeed速度越来越快IncreasedLocomotivetractionforce(shearforce)机车牵引力不断提高（剪切作用力增大）Shorterdeparturetime发车间隔越来越短Increasedload载重量增大Corrugationcausestrafficnoise波磨引起行车噪音Rollingcontactfatiguecrackleadstoshortentheservicelifeofrail滚动接触疲劳裂纹导致钢轨使用寿命缩短Lessmaintenancetime(3-4hours)维护天窗少（3-4小时）67Corrugation波磨（北京地铁6号线）Headchecks疲劳裂纹（鱼鳞纹）Problemsandchallengesofrailmaintenance钢轨维护遇到的问题和挑战CommonRailwayProblems常见的钢轨问题8HighSpeedMaintenanceforRails城市轨道交通钢轨的高速维护Content内容ThemainproblemsandstatusofrailmaintenanceinUTS城市轨道交通中钢轨的主要问题及维护的现状Influencefactorsofthewheel/railrelationshipinUTS城市轨道交通中影响轮轨关系的因素Problemsandchallengesofrailmaintenance钢轨维护遇到的问题和挑战Existingmaintenancemethodsandeffects现有的钢轨维护手段和维护效果HighSpeedGrinding(HSG)technology高速打磨技术VosslohandthecoretechnologyadvantagesofHSG福斯罗公司及在高速打磨技术的核心优势++-9Linie6gemessen0,25mm!波磨深度0.25mmTraditionalgrindingmaintenance传统打磨维护Averagegrindingspeed5-8km/h平均打磨速度5-8km/hThereareFacetsaftergrinding打磨后存在刻面Canleadtoshortwaveirregularities可导致短波不平顺Irregularitywavelengthisrelatedtothegrindingspeed不平顺波长与打磨速度有关Grindingspeed打磨速度km/h35681015Wavelength表面不平顺波长mm13.823.127.637.046.369.3Existingmaintenancemethodsandeffectsforrails现有的钢轨维护手段和效果Annealingeffect发蓝带Facet刻面Periodicvariation周期性变化Rippledepth波纹深度10Toproducebigsmock产生烟尘较大（烟雾和粉尘）Canbeharmingthehealthofworkers会影响作业人员健康Railscleaning轨道清洗(金属粉尘堆积可能导致绝缘接头失效)Workingnoise作业噪音Existingmaintenancemethodsandeffectsforrails现有的钢轨维护手段和效果Cleanlinessofexistingmaintenancemethodsforrails现有的钢轨维护手段的清洁性11HighSpeedMaintenanceforRails城市轨道交通钢轨的高速维护Content内容ThemainproblemsandstatusofrailmaintenanceinUTS城市轨道交通中钢轨的主要问题及维护的现状Highspeedgrinding(HSG)technology高速打磨技术Raildefectsandnecessityforrailpreventivegrinding钢轨病害和钢轨预防性打磨的必要性Highspeedgrinding高速打磨PromoteofHSGinGermanyandworldwidereferencesofHSG-city高速打磨在德国的推广和城铁高速打磨在其他国家的应用IntroductionofHSGtechnology高速打磨技术介绍TechnicaldataofHSG-city高速打磨的技术数据VosslohandthecoretechnologyadvantagesofHSG福斯罗公司及在高速打磨技术的核心优势++-12Picturesize4,2X7,1cmPicturesize4,2X7,1cmPicturesize4,2X7,1cmCorrugationandslipwavesincreasenoiseandvibrations.Thecomfortoftravellersandneighboursdecreases,ontheotherhandincreasingdynamicforcesdamagethesuperstructureandrollingstock.波磨和滑波的病害增加了城铁列车通过时的噪音和震感，附近居民的生活也受到影响，乘客的舒适度也会降低。另一方面，增加了动态力压对基建和机车的伤害。Rollingcontactfatigueisamaterialtransformation.Ahardenedsurfacelayerdevelopsandleadstosurfacecracks(headchecksandsquats).Theultimateconsequenceisrailfracture.接触性疲劳损害是一种物质转化。硬化表面层加深并且导致表面伤害裂缝，鱼鳞伤损等。最终可能导致钢轨断裂。Railpollutionandrustcorrupttherail/wheelcontact.Irregularitiesintractionandsignallingharmtheoperatingprocessandsafety.附着于钢轨表面的污染物和铁锈腐败等阻碍了轮轨正常接触。打滑影响牵引力的充分释放，错误的信号显示危及行车安全Raildefectsandnecessityforrailpreventivegrinding钢轨病害和钢轨预防性打磨的必要性Raildefects钢轨病害波磨鱼鳞纹表面附着物Raildefect:Headcheck钢轨病害：鱼鳞纹Defectdevelopment钢轨病害的发展过程1314TheMagicWearRate神奇的钢轨磨损率►Thedevelopmentofallcommonraildefectsisnon-linear所有常见的钢轨损害的发展都是非线性的►Goal:MaximizeRailLifeCyclebyremovinglessmaterialinshortergrindingcycles目标：通过更频繁的打磨，每次仅去除少量钢轨表面材质，最大限度延长钢轨的使用寿命►Optimum:Removalofthehardenedsurfacelayerbeforedefectsdevelop最优方式：在伤损形成前磨削掉表面硬化层basedon:J.Kalousek,E.Magel:Themagicwearrate.RailwayTrack&Structure,March1997,pp.50-52.Defectdepth伤损深度Newrail新钢轨Accumulatedtraffic(MGT)累计通过量Nogrinding无打磨Commonpreventivegrinding常见预防性打磨Correctivemaintenance修正性打磨HSGpreventivegrinding预防性钢轨打磨Raildefectsandnecessityforrailpreventivegrinding钢轨病害和钢轨预防性打磨的经济效益Necessityforrailpreventivegrinding钢轨预防性打磨的经济效益NeedHSGpreventivegrinding需要HSG预防性打磨15HighSpeedMaintenanceforRails城市轨道交通钢轨的高速维护Content内容ThemainproblemsandstatusofrailmaintenanceinUTS城市轨道交通中钢轨的主要问题及维护的现状Highspeedgrinding(HSG)technology高速打磨技术Raildefectsandnecessityforrailpreventivegrinding钢轨病害和钢轨预