The Influence of Subgrade Subsidence on Train Track Dynamic Interaction
|Title:||The Influence of Subgrade Subsidence on Train Track Dynamic Interaction||Authors:||O'Brien, Eugene J.
|Permanent link:||http://hdl.handle.net/10197/4061||Date:||18-Apr-2012||Abstract:||This paper reports results from a numerical model to calculate subgrade settlement in railway tracks due to repeated dynamic loading. The trains are modelled as rigid body 2-axle carriages on two layers of springs. The track is modelled as a beam supported on three layers of springs. Permanent deformation of the subgrade layer is calculated on the basis of a power law assumption. Patterns of dynamic forces are calculated on a smooth track and on a track subject to an initial subgrade ‘pothole’. The latter is shown to grow with repeated loading and to change the mean patterns of applied force.||Type of material:||Conference Publication||Publisher:||Civil-Comp||Copyright (published version):||2012, Civil-Comp Ltd||Keywords:||Dynamic;Interaction;Settlement;Roughness;Pothole||DOI:||10.4203/ccp.98.110||Language:||en||Status of Item:||Not peer reviewed||Is part of:||Pombo, J. (ed.). Proceedings of the First International Conference on Railway Technology: Research, Development and Maintenance||Conference Details:||Railways 2012 The First International Conference on Railway Technology: Research, Development and Maintenance Las Palmas de Gran Canaria, Spain 18-20 April 2012|
|Appears in Collections:||Civil Engineering Research Collection|
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