2023·1·BuildingConstruction116新型装配式CRTSⅢ型板式无砟轨道“直铺法”施工技术刘洋李国炜卢加新王闵闵王亚坤李烨中建八局第一建设有限公司山东济南250100摘要：以货运重载铁路新建铁路临沂临港铁路工程为实例，设计研发了一种新型的装配式CRTSⅢ型板式无砟轨道结构，采用预制装配式底座板，通过集中化、工厂化、机械化的生产方式，极大减少了支撑、模板等周转料具的投入，同时提高了混凝土施工质量。创新提出并应用了路基表层、底座板、轨道板间设置锚固体系限位，底座板与路基表层间设置快凝微表处混合料找平层结构，轨道板与底座板间设置橡胶与聚氨酯组合的减振垫结构等技术，可充分地利用路基沉降评估期的技术间歇时间，开展线上工程与线下工程平行施工，解决传统工艺无法连续作业和高效转序的技术难题，实现了无砟轨道快速化、经济化、优质化的建造目标。关键词：货运重载铁路；装配式无砟轨道；预制装配式底座板；快凝微表处；锚固桩中图分类号：TU99文献标志码：A文章编号：1004-1001(2023)01-0116-05DOI：10.14144/j.cnki.jzsg.2023.01.031ConstructionTechnologyof"DirectPavingMethod"forNewFabricatedCRTSⅢSlabBallastlessTrackLIUYangLIGuoweiLUJiaxinWANGMinminWANGYakunLIYeTheFirstCompanyofChinaEighthEngineeringBureauLtd.,Jinan250100,Shandong,ChinaAbstract:TakingthenewlybuiltfreightheavyhaulrailwayLinyiPortRailwayProjectasanexample,anewtypeoffabricatedCRTSⅢslabballastlesstrackstructureisdesignedanddeveloped.Prefabricatedbaseplatesareused.Throughcentralized,industrializedandmechanizedproductionmethods,theinputofsupport,formworkandotherturnovermaterialsisgreatlyreduced,andthequalityofconcreteconstructionisimproved.Innovativetechnologiessuchassettinganchoragesystemlimitbetweenthesubgradesurfacelayer,baseplateandtrackplate,settingrapidsolidificationmicrosurfacingmixturelevelinglayerstructurebetweenthebaseplateandthesubgradesurfacelayer,andsettingrubberandpolyurethanecombineddampingpadstructurebetweenthetrackplateandthebaseplatehavebeenputforwardandapplied,whichcanfullyutilizethetechnicalintervalduringthesubgradesettlementassessmentperiodtocarryoutparallelconstructionofonlineandofflineprojects,tosolvethetechnicalproblemsofcontinuousoper...
