RHOMBERG RAIL
SLABINTELLIGENT
TRACkVERSATILE
IVESEffICIENT AND SOLID
PHILOSOPHY AND CONSTRUCTION
DuringthedevelopmentofIVES,thevariouspossiblecompo-nents,materialsandworkingprocesseswereinvestigatedandmatchedtooneanothertocreateanoverallsystemthatworkswellandiscost-efficient.Theresultisatechnicallyandeconomi-
Rhomberg Rail can call on years of theoretical and practical know-how in the various types of slab track construction. And the result is IVES, the latest development in ballastless track construction.
IVES stands for intelligent, versatile, efficient, solid. All these characteristics are embodied in this integrated concept, which is based on an analysis of the advantages and disadvantages of various long-term tested slab track techniques.
IVES – SYNTHESIS Of DESIGN AND CONSTRUCTION EXPERIENCE
callyoptimisedformofconstructionthatreducesnotonlycostsinordinaryfieldsofapplicationofslabtrack(high-speedtrackinhighlydevelopedregions)butalsoallowsaconsiderablywiderrangeofusesofthistechnologyasanalternativetoballastroadbed.
The IVES efficiency principle: Loadcapacity,accuracyandamountofworkareideallymatchedtotherespectiverequirements.Intermsofcostandeffort,IVESinvolvesasmuchasnecessaryandaslittleaspossibleoftheseresourcesinallareasofconstruction.
Load capacityThe load capacity requirement decreases as the stresses from the railway loads decrease from the top downwards.
AccuracyThe influence of
manufacturing accuracy on vehicle
track guidance decreases
from top downwards.
Overall qualityThe requirements for overall quality are consistently fulfilled.
The amount of work involved in
building the track decreases from the bottom upwards.
Amount of work
BasicprinciplesofIVES
EffICIENT USE Of COMPONENTS AND MATERIALS
GROUTING IN THE RAIL fASTENINGSAhigh-strength,rapid-hardeninggroutingmortarisusedsothatgroutingtherailfasteningsintotheprecastconcreteunitsisaneasy,quickandreliableon-siteprocessthatachievesahigh-qualityresult.
BASE LAYERThebaselayerispreferablyconstructedofroadasphaltus-ingconventionalmethods.Asarule,thebaselayershouldhavedowelsinsertedtocreateaconnectioncapableoftransferringshearfromthestructuralelementsintothebaselayer.
STRUCTURAL ELEMENTSThesecomponentscarrythegrouted-inrailfasteningsandtransferthevehicleloadintothebaselayer.Astheydonotdirectlydeterminetherailgeometry,theycanbemanufac-turedintheappropriatequalitywithoutadoptingtoohighatechnicalstandardsothatcostscanbekeptrelativelylow.
OneofthekeyideasinthedevelopmentofIVESwastheefficientanddeliberateuseofcomponentsandmaterialswithqualitiesthatmatchtheirrespectiverequirements.Likewise,manufacturingmethodsandtransportandconstructionprocessestakeintoaccounttheobjectiveofincreasingefficiency.Theresultsareconstituentpartsthatarequickandeasytoproduce,transport,handleandinstall.
RAIL fASTENING SYSTEMTheDFF304systemisbasedonprovenandapprovedcom-ponents.Thesupportpointsweremodifiedsothattheyprovideaformofdirectfastening(groutedintotheprecastelement)tofulfilthehighestdemandsforlong-termpull-outresistanceandconvenienceofinstallation.
RailfasteningDFF304
Structuralelement
INSTALLATION SEqUENCE
CONSTRUCTION Of BASE LAYERThebaselayer,preferablyconsistingofasphalt,isnormallylaidwitharoadfinisherinaccordancewiththebottom-upprinciple.Theaccuracyrequirementsarelowerthanmostroadconstructionprojectsandshouldbequiteeasytoachieve.
PLACING THE STRUCTURAL ELEMENTSThepositionanddepthofthestructuralelementsareroughlydefinedbythepreinserteddowelsandthepropertiesofthebaselayer.Theiruniformlylevelsurfaceallowsawidevarietyofvehiclestorunonthemdirectlyafterplacing.
fORMATION Of THE TRACk GRIDThetrackgrid,consistingofrailsandtrackfastenings,isformedusingproventechniques.Theplasticdowelboltsoftherailfastenersprojectintotherecessesinthetopofthetransversestructuralelements.
fINE ADJUSTMENT Of THE TRACk GRIDThetrackgridisbroughttoitsprecisepositionandlevel.Thetop-downprincipleallowsalltheinaccuraciesfromthepreviousstepstobecompensatedforlater,evenataverylatestageinthework.Therecessesinthetopofthetrans-versestructuralelementsallowrelativelylargerangesofhorizontalandverticalcorrectiveadjustments.
fIXING THE RAIL SUPPORT POINTSThevoidsbetweentherailfasteningsandthestructuralelementsarefilledwithhigh-strengthmortar.Theintentionhereistopermanentlyfixthetrackgridexactlyinthedesiredposition.
Asphaltbaselayerwithdowels
Structuralelementswithtrackgrid
Placedstructuralelements
INSTALLATION TECHNIqUE: SIMPLE, RELIABLE, qUICk, fLEXIBLE
THE SUCCESS Of THE IVES INSTALLATION CONCEPT IS BASED ON THE fOLLOWING:
•Combination of bottom-up and top-down installation principles•Efficient distribution of the accuracy and amount of work
involved•Efficient use of material and component qualities•Appropriate simplification of components
THE IVES SYSTEM AT A GLANCE
Intelligent:
• Flexibilityofadaptationtosuitthestateoftechnologyavailableattheinstallationsitethroughitsrelativelysimpleandfunctionalconstruction:structurallayersandelementscanbegenerallyconstructedonsite,whereverrun-of-the-millroad-buildingandmanufactureofsimpleprefabricatedunitscantakeplace.
• Flexibilityoftailoringtheamountofworkinvolvedtosuitprojectresourcesthroughasimplestep-by-stepapproachtoinstallation:canbeconstructedequallywellusinglow-techequipmentorhighlymechanisedplant.
Versatile:
• Canbeusedforvirtuallyalltypesofpermanentway(stand-ardgauge,rapidtransit,low-andhigh-speedrailways).
• Thesimpledesignofthestructuralelementsallowsindi-vidualcomponentstobespecificallymodifiedtosuitthetrackconfiguration.
Efficient:
• Greateravailabilityofcomponentsthankstothesimple,standardiseddesignofthestructuralelements.
• Universalcomponentdesign(oranynecessaryadjustmentscanbedoneatrelativelylittlecost).
• Highdegreeofmechanisationispossibleduetosimplestep-by-stepinstallation.
• Interruptionofconstructionisnoproblem,astheinstallationstepsarenottime-dependent.
• Shortwaitingtimesbetweeneachinstallationstep• Trackunderconstructioncanbeusedfortransport
purposesatalmosteverystageofinstallation• Earlydefinedpointintimewhenthefinishedtrackis
capableofsupportingloads
Solid:
• Consistentlyhighquality• Efficient,high-gradematerials• Provenmaterialsandcomponents
UNIVERSAL APPLICATION
Different railway types – same track system:TheIVESslabtracksystemcanbeusedforalmostanytypeofpermanentway(standardgauge,rapidtransit,low-orhigh-speedrailway).Becauseofitssimpleformofconstruction,anyrequiredmodificationscanbemadequicklyandeasily.
Changes to the track configuration – easily done by sticking to the basic principlesThesimpledesignoftheprefabricatedconcreteunits,inparticulartheirshapeandprecisedimensions,allowseachcomponenttobespecificallyadjustedtosuitanytrackconfiguration.
Applicationaslongitudinalstructuralelementsonbridges
www.rhombergrail.com
Since2001RTE’sdevelopmentshaveexpandedthecompetenceprofileoftheRhombergRailGroupintheareaofrailwaytracksystemsandmeasuringtechnology.Theteamconsistsofawiderangeofexperts,whichincludeconstructionengineers,surveyors,electronicengineersandsoftwareengineers.Theydevelopandoptimisecomplexsystemsforavarietyofspecialiseddisciplines.
ThecorecompetencesofRTETechnologieGmbHarethedevel-opmentoftracksurveyingsystemsandslabtrackrailwaysystems.Allthesedevelopmentsarecharacterisedbytheirpracticalap-plicationasallsystemshavebeentestedandappliedtoin-houseprojectsfortheRhombergRailGroup.RTETechnologieGmbHalsodevelopssolutionsinothertechnicalareas(mechanicalconstruction,softwaredevelopment,geometrytasks,digital
imageprocessing,andmicroprocessorcontrolsystems)foroutsidecompanies.OurofficeinSalzburgisfullyequippedwithatesttrackandthenecessaryinfrastructuretosupportCADsoft-wareandelectronicdevelopments.
MarketingandsalesiscarriedoutbyRhombergRailConsultGmbH.
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