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S. Costa D'Aguiar¹, N. Calon², Y.J. Cui³, S. Kahil^2,3 and O. Néel¹

¹SNCF Innovation and Research, Paris, France
²SNCF Engineering and Project, Saint-Denis, France
³Université Paris Est, Ecole des Ponts ParisTech Laboratoire Navier, Marne-la-Vallée, France

doi:10.4203/ccp.110.23

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, "Dynamic Characterization of an Unstable Area on a French High Speed Line", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 23, 2016. doi:10.4203/ccp.110.23

Keywords: high-speed railway, ballast instability, in-situ dynamic characterization study, geotechnical study, bender element, numerical simulation.

Summary

The main purpose of this paper is, to present a case study of a high speed line unstable zone and to identify, using geotechnical and accelerometric studies, the main mechanisms contributing to the ballast instability. Understanding the impact of dynamic soil behaviour and measuring its properties on a HSL is a major issue to optimize the maintenance operations. On a long run approach, the aim of this study is to define an investigation methodology which could be applied to future areas with unstable behaviour. The study of this specific case can also lead to better design and appropriate maintenance of the areas with poor soil characteristics.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 23 Dynamic Characterization of an Unstable Area on a French High Speed Line S. Costa D'Aguiar¹, N. Calon², Y.J. Cui³, S. Kahil^2,3 and O. Néel¹ ¹SNCF Innovation and Research, Paris, France ²SNCF Engineering and Project, Saint-Denis, France ³Université Paris Est, Ecole des Ponts ParisTech Laboratoire Navier, Marne-la-Vallée, France doi:10.4203/ccp.110.23 purchase the full-text of this paper Full Bibliographic Reference for this paper , "Dynamic Characterization of an Unstable Area on a French High Speed Line", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 23, 2016. doi:10.4203/ccp.110.23 Keywords: high-speed railway, ballast instability, in-situ dynamic characterization study, geotechnical study, bender element, numerical simulation. Summary The main purpose of this paper is, to present a case study of a high speed line unstable zone and to identify, using geotechnical and accelerometric studies, the main mechanisms contributing to the ballast instability. Understanding the impact of dynamic soil behaviour and measuring its properties on a HSL is a major issue to optimize the maintenance operations. On a long run approach, the aim of this study is to define an investigation methodology which could be applied to future areas with unstable behaviour. The study of this specific case can also lead to better design and appropriate maintenance of the areas with poor soil characteristics. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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