rheda 2000® ballastless track system - RAIL.ONE GmbH

RHEDA 2000® – a proven systemwith worldwide reference projectsMaximum reliability and safety in planning,construction, and operationOver the past 40 years, ballastless railway track has developedfrom a niche product to internationally proven standardtechnology in the new construction of railway lines with specialrequirements. One of the most influential systems for applicationof ballastless track with main-track sleepers is theRHEDA family of ballastless tracks. RAIL.ONE holds the patentsfor the latest and highest development stage of theRHEDA 2000® model and of the RHEDA Berlin system.The RHEDA 2000® system, as well as other models withRHEDA technology, have until now been installed in more than10 countries, in more than 2,000 km of tracks, and for morethan 150 turnouts and rail expansion joints. The required officialapproval has been obtained for each of the applications ofRHEDA 2000®, including a Certificate of Conformity in accordancewith European Union Directive 96/48 (Version 2001), forthe line from Amsterdam to the Belgian border. The use of theRHEDA 2000® system for the most widespread high-speedtrain systems – the Shinkansen, TGV/Thalys und ICE – and forthe LZB, ETCS, and UM 71 signal systems – verifies the compatibilityof this ballastless system. On the basis of the extensiveand widely varied experience gained with the RHEDA2000® system, it offers a maximum of security for every user:starting with the planning and approval phase, including installation,and extending to operation.The next technological step: ballastless trackwithout continuous reinforcementAn additional system solution is the new ballastless track systemwithout continuous reinforcement. In its structural designand functional principle, it matches the current stateof the art in construction of transportation infrastructure –whereas, in contrast to the RHEDA 2000® system until now,it has eliminated continuous reinforcement. This eliminationof reinforcement enables shortening of construction time andreduction in costs. This modification has also minimized unwantedeffects of the reinforcement on railway signalling systemsand on the electrical grounding facilities. Analogous toroadway construction, this new track system features provisionof lateral dummy joints that enable controlled formationof cracks in the concrete track-supporting layer. These jointsare sealed to prevent the intrusion of water. The transfer oflateral forces, previously enabled by aggregate interlock, isnow provided by bolt anchors. Furthermore, the higher concretegrade C35/45 can be used, instead of the grade C30/37employed until now. This achieves greater resistance to frost,which in turn leads to longer life cycles. Ballastless track withoutcontinuous reinforcement can be executed either with orwithout a hydraulically bonded layer.track joints (filled withsealing compound)concrete track-supportinglayer 240 mmprovision of bolt anchorfittings for the jointshydraulically bonded layer 300 mmballast supporting layer