CRTSIII型板式无砟轨道建造全新理念
NewIdeasoftheConstructionofCRTSIIIBallastlessTrack;一、总体研发思想
Ⅰ、OverallResearchandDevelopmentThoughts;因为，轨道几何尺寸的制造精度、安装误差和刚度变化是引起高速列车振动的根源。我们追求高速度的过程，就是不断的提高轨道精度和轨道结构刚度均匀性，不断克服振动的过程。
Sincethemanufactureaccuracyoftherailgeometrysize,installationerrorsandrigiditychangearetherootcausetoresultinvibrationofhigh-speedtrain.Thatwepursuithighspeedistokeepimprovingtheprecisionandlongitudinalrigidityhomogenizationfortherailstructureandovercomingthevibrations.
;总体的研发思想：就是“单元思路、纵连方式、双块受力〞。其核心理论构架就是“路基纵连、桥隧单元、方便维修〞。
TheoverallR＆DthoughtisUniteideas,Longitudinalcoupled,Double-blockforced.Itscoretheoreticalframeworkislongitudinal-coupledsubgrade,bridgeunit,easymaintenance.
;;;路基结构是由散粒体填筑形成，路基外表刚度较小。假设采用单元结构，列车通过时，由于路基外表刚度较低，对板端支承反力，约束力不够，板端竖向位移较大，形成振动源，对高速列车平安性和舒适性影响较大。
Thesubgradestructureismadeofgranularmaterialsandthesurfacerigidityofthesubgradeisrelativelylow.Iftheunitstructureisadopted,whenthetrainpassesonit,thesupportingforceattheendofslabandbindingforcearenotenoughsothattheverticaldisplacementattheendofslabiscomparativelylarge,becauseofthelowsurfacerigidityofthesubgrade,whichresultsinvibrationsourcethathasgreatinfluenceonthesafetyandconvenienceofthehigh-speedtrain.;纵连结构可有效分散板下应力集中，降低应力峰值，提高轨道结构的整体性，增大轨道结构的连续刚度，可最经济、最合理、最有效的克服路基外表刚度降低所带来的振动问题。
Thelongitudinal-coupledstructurecandistributestressconcentrationeffectivelyandreducestresspeaktoimprovetheintegrityoftherailstructureandincreaseitscontinuousrigidity.Anditcanmosteconomically,reasonably,andeffectivelysolvetheproblemsbroughtbythedecreasingsurfacerigidityofthesubgrade.
;采用的是一种柔性的纵连结构。温升温降时，???道板纵向可移动〔具有单元自由伸缩效果〕，竖向受限那么不能移动。假设根底有沉降，柔性纵连结构有较强的跟随性。
Onekindofflexiblelongitudinal-coupledstructureisadopted.Atthetimeoftemperatureriseordrop,trackslabcanmovetowardsthelongitud