Three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed
Due to recent congestion of highways in many countries around the world, railways have become the most popular means of public transportation, which has increased the demand for heavier and faster trains. High speeds and heavy loads of trains are usually accompanied with large vibrations in the trai...
| Main Authors: | , |
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| Format: | Journal Article |
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Elsevier
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/18727 |
| _version_ | 1848749827553230848 |
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| author | Shahin, Mohamed Sayeed, M. |
| author_facet | Shahin, Mohamed Sayeed, M. |
| author_sort | Shahin, Mohamed |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Due to recent congestion of highways in many countries around the world, railways have become the most popular means of public transportation, which has increased the demand for heavier and faster trains. High speeds and heavy loads of trains are usually accompanied with large vibrations in the train-track-ground system, especially when train speed reaches its critical value, leading to possible train derailment and track damages. This unwanted scenario makes it important for railway geotechnical engineers to investigate the behaviour of ballasted railway track foundations for high-speed trains, with special reference to critical speed. In the current paper, a sophisticated three-dimensional (3D) finite element (FE) modelling was developed to simulate the dynamic response of ballasted railway tracks subjected to train moving loads, and the critical speed was investigated for various train-track-ground system conditions. The results were presented in terms of the evolution of the coefficient of dynamic amplification of sleeper deflection versus train speed, which have been synthesized into simple sensitivity charts that can be used to determine the critical speed corresponding to the conditions of a particular train-track-ground system. |
| first_indexed | 2025-11-14T07:27:07Z |
| format | Journal Article |
| id | curtin-20.500.11937-18727 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:27:07Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-187272018-02-05T23:59:08Z Three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed Shahin, Mohamed Sayeed, M. Due to recent congestion of highways in many countries around the world, railways have become the most popular means of public transportation, which has increased the demand for heavier and faster trains. High speeds and heavy loads of trains are usually accompanied with large vibrations in the train-track-ground system, especially when train speed reaches its critical value, leading to possible train derailment and track damages. This unwanted scenario makes it important for railway geotechnical engineers to investigate the behaviour of ballasted railway track foundations for high-speed trains, with special reference to critical speed. In the current paper, a sophisticated three-dimensional (3D) finite element (FE) modelling was developed to simulate the dynamic response of ballasted railway tracks subjected to train moving loads, and the critical speed was investigated for various train-track-ground system conditions. The results were presented in terms of the evolution of the coefficient of dynamic amplification of sleeper deflection versus train speed, which have been synthesized into simple sensitivity charts that can be used to determine the critical speed corresponding to the conditions of a particular train-track-ground system. 2016 Journal Article http://hdl.handle.net/20.500.11937/18727 10.1016/j.trgeo.2016.01.003 Elsevier fulltext |
| spellingShingle | Shahin, Mohamed Sayeed, M. Three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed |
| title | Three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed |
| title_full | Three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed |
| title_fullStr | Three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed |
| title_full_unstemmed | Three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed |
| title_short | Three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed |
| title_sort | three-dimensional numerical modelling of ballasted railway track foundations for high-speed trains with special reference to critical speed |
| url | http://hdl.handle.net/20.500.11937/18727 |