Influence of the Bituminous Layer on Temperature and Water Infiltration in Railway Structures of the Bretagne–Pays de la Loire High-Speed Line
| Autor: | Jean-Michel Piau, Simon Pouget, Pierre Hornych, Juliette Blanc, Louis-Marie Cottineau, Alain Ducreau, Diana Khairallah, Frederic Savin, Mohsen Hosseingholian |
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| Přispěvatelé: | Railenium, parent, Laboratoire Auscultation, Modélisation, Expérimentation des infrastructures de transport (IFSTTAR/MAST/LAMES), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Structure et Instrumentation Intégrée (IFSTTAR/COSYS/SII), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-PRES Université Nantes Angers Le Mans (UNAM), Groupe Eiffage, SNCF Réseau, SETEC |
| Rok vydání: | 2019 |
| Předmět: |
Ballast
BETON BITUMINEUX Instrumentation 02 engineering and technology Track (rail transport) BALLASTED RAILWAYS [SPI.MAT]Engineering Sciences [physics]/Materials ASPHALT CONCRETE 0203 mechanical engineering SURVEILLANCE GRANULAT GROSSIER GRANDE VITESSE General Materials Science Geotechnical engineering MONITORING WATER INFILTRATION TEMPERATURE Water content TRAIN A GRANDE VITESSE - TGV BRETAGNE PAYS DE LA LOIRE Settlement (structural) business.industry Mechanical Engineering Durability BALLAST Asphalt concrete [SPI.GCIV]Engineering Sciences [physics]/Civil Engineering 020303 mechanical engineering & transports INFILTRATION EAU TRAIN (CHEMIN DE FER) Mechanics of Materials Asphalt ENROBE VOIE FERREE Environmental science CHEMIN DE FER (VOIE) business CONTROLE |
| Zdroj: | Journal of Testing and Evaluation Journal of Testing and Evaluation, ASTM International, 2020, 48 (1), p. 134-149. ⟨10.1520/JTE20180894⟩ |
| ISSN: | 0090-3973 1945-7553 |
| DOI: | 10.1520/jte20180894 |
| Popis: | The phenomena of settlement and wear of the ballast under dynamic stresses lead to high frequencies and high maintenance costs on high-speed railway lines. Studies have shown that these settlements are linked to high accelerations produced in the ballast by the passage of high-speed trains (HST). A layer of asphalt concrete (GB) was introduced under the ballast layer on the high-speed line Bretagne-Pays de Loire (BPL HSL). It is intended, among other things, to reduce the amplitude of accelerations produced at the passage of the HST and thus improve the durability of the track. The BPL HSL spans 105 km, with a sublayer of asphalt concrete under the ballast and 77 km with a granular sublayer (UGM). To evaluate the performance of the structures with bituminous sublayer and to compare it with traditional structures with granular sublayer, four track sections have been instrumented during construction. This article presents the different sensors of the instrumentation, as well as the acquisition system installed to collect measurements. The focus, in this study, concerns the temperature, water content, and vertical settlement measurements made on the instrumented sections. Temperature variations recorded during two years on the railway structure with bituminous sublayer were analyzed and compared with those measured on a classical bituminous pavement. Influence of the bituminous layer on water infiltration and track settlements has also been studied. |
| Databáze: | OpenAIRE |
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