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Coenraad Esveld

 

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Developments in railway tracks

One of the most important developments in the last decade…

28 December 2008 | By Prof. Coenraad Esveld, Director of Esveld Consulting Services and Em. Professor of Railway Engineering, TU Delft

One of the most important developments in the last decade was the large scale application of slab track. This is in particular the case for high-speed tracks. In countries like The Netherlands, with very soft soil conditions, classical high-speed tracks could only be realised without massive soil improvements via grouting…

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Weld registration and acceptance

For a long time now, poor weld geometry has been…

27 September 2008 | By Coenraad Esveld, Director of Esveld Consulting Services (ECS), Professor of Railway Engineering, TU Delft and Global Railway Review Editorial Board Member

For a long time now, poor weld geometry has been a major problem for railway infrastructure. Due to geometrical imperfections, high dynamic loads could be generated during wheel passage. The only way to control the geometrical quality in an effective way, is by measuring and documenting every weld with an…

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Assessment of high-speed slab track design

Currently, all over the world, non-ballasted track concepts are being…

28 November 2006 | By Coenraad Esveld, Professor of Railway Engineering and Global Railway Review Editorial Board Member and Valéri Markine, Assistant Professor, Delft University of Technology

Currently, all over the world, non-ballasted track concepts are being applied, although still at a moderate volume. If the low maintenance characteristics of slab track on open line are to be retained, great care must be taken to ensure that the subgrade layers are homogenous and capable of bearing the…

RET metro, Rotterdam, The Netherlands.
RET metro, Rotterdam, The Netherlands.
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Shape optimisation of a railway wheel profile

Delft University of Technology has developed and successfully implemented a…

3 April 2006 | By Coenraad Esveld, Professor of Railway Engineering and Valery L. Markine, Assistant Professor of Railway Engineering and Ivan Y. Shevtsov, Researcher of Railway Engineering, TU Delft

Delft University of Technology has developed and successfully implemented a procedure for optimisation of a railway wheel profile. An optimised wheel profile reduces wheel/rail wear and prevents vehicle instability.

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New Dutch assessment of rail welding geometry

Delft University of Technology has developed new technical regulation standards…

2 March 2005 | By Michaël Steenbergen, Researcher Railway Engineering and Coenraad Esveld, Professor of Railway Engineering, TU Delft and Rolf Dollevoet, ProRail

Delft University of Technology has developed new technical regulation standards for the geometrical deviations of metallurgic rail welds in The Netherlands, in cooperation with the Dutch rail infrastructure manager ProRail.