The Influence of Subgrade Subsidence on Train Track Dynamic Interaction

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Title: The Influence of Subgrade Subsidence on Train Track Dynamic Interaction
Authors: O'Brien, Eugene J.
Taheri, A.
Gavin, Kenneth
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Status of Item: Not peer reviewed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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