High-Speed Railway Turnout Sub-Rail Foundations
Rau sub-rail foundation ntawm turnout nyob rau hauv lub teb chaws Yelemees muaj ob hom ballasted thiab tsis-ballasted khiav. Sub-rail foundation ntawm railway kab uas twb muaj lawm yog siv nyob rau hauv ballasted khiav nyob rau hauv turnout cheeb tsam. Thaum pw tsaug zog ntev dua 3.2m, pw tsaug zog resonance tshwm sim pom tseeb tshwm sim. Thiab tom qab ntawd "ballast rau hmoov" tshwm sim los ntawm qhov tsis muaj kev tsav tsheb kawg ntawm lub tsheb ciav hlau ntaus lub txaj. Yog li ntev cov neeg pw tsaug zog txuas nrog los ntawm kev sib koom ua ke, uas tuaj yeem daws cov xwm txheej saum toj no.
Ntawm txoj kev tsheb ciav hlau kub ceev los ntawm Cologne mus rau Frankfurt thiab txoj kab zoo sib xws los ntawm Nuremberg mus rau Munich hauv kev tsim kho tsis yog ballast khiav yog tsim los yog tsim, uas mines Rheda2000 ntev pw. Ntev pw tsaug zog yog ib feem ntawm pre-stressed qhob pw tsaug zog, uas qhov qis dua qhov pom yog daim duab peb sab truss. Nyob rau hauv ob kawg yog rail lub xub pwg nyom thiab yas dowels. Thaum lub sij hawm tsim kho rail bolt tuaj yeem kho qhov siab kom haum. Kev ua vaj tse pob zeb yuav tsum ua raws li EN13230-4 tus qauv. Nyob rau hauv lub turnout cheeb tsam ntawm Fabkis high-ceev railway tag nrho cov pw tsaug zog yog pob zeb pw tsaug zog uas yuav tsum muaj txaus lub zog, rigidity thiab zoo stability. Cov pw tsaug zog ntev sib txawv uas maj mam hloov ntawm 2.6m mus rau 4.8m. Tensioning quab yuam ntawm pw tsaug zog yog tswj nyob rau hauv 500kn. Ntev pw tsaug zog tsis txuas nrog lub pob khawm. Nyob rau hauv ob kawg yog rail lub xub pwg nyom thiab yas dowels.