Impact of train speed on the mechanical behaviours of track-bed materials

Autor: Francisco Lamas-Lopez, Yu-Jun Cui, Nicolas Calon, Sofia Costa D'Aguiar, Tongwei Zhang

Publikováno v: Journal of Rock Mechanics and Geotechnical Engineering, Vol 9, Iss 5, Pp 818-829 (2017)

For the 30,000 km long French conventional railway lines (94% of the whole network), the train speed is currently limited to 220 km/h, whilst the speed is 320 km/h for the 1800 km long high-speed lines. Nowadays, there is a growing need to improve th

Externí odkaz: https://doaj.org/article/c50200d81aeb40789832d5a616a7a1a5

Investigation on the mechanical behavior of track-bed materials at various contents of coarse grains

Autor: Han Lin Wang, Gilles Saussine, Renpeng Chen, Jean-Claude Dupla, Yu-Jun Cui, Patrick Aimedieu, Jean Canou, Nicolas Calon, Francisco Lamas-Lopez

Publikováno v: Construction and Building Materials
Construction and Building Materials, Elsevier, 2018, 164, pp.228-237. ⟨10.1016/j.conbuildmat.2017.12.209⟩

In the conventional French railway substructures, a layer namely interlayer was created naturally by the interpenetration of ballast and subgrade. The lower part of this interlayer is characterized by a matrix of fines with inclusion of coarse grains

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d35a6fbd72511822647b15043fa65b77
https://doi.org/10.1016/j.conbuildmat.2017.12.209

Impact of train speed on the mechanical behaviours of track-bed materials

Autor: Tongwei Zhang, Francisco Lamas-Lopez, Yu-Jun Cui, Nicolas Calon, Sofia Costa D’Aguiar

Publikováno v: Journal of Rock Mechanics and Geotechnical Engineering, Vol 9, Iss 5, Pp 818-829 (2017)

For the 30,000 km long French conventional railway lines (94% of the whole network), the train speed is currently limited to 220 km/h, whilst the speed is 320 km/h for the 1800 km long high-speed lines. Nowadays, there is a growing need to improve th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::065e73c8aa8657ffb1bf4c684f77c79d
https://doi.org/10.1016/j.jrmge.2017.03.018

Assessment of integration method for displacement determination using field accelerometer and geophone data

Autor: Yu-Jun Cui, Nicolas Calon, Francisco Lamas-Lopez, S. Costa D’Aguiar

Publikováno v: Journal of Zhejiang University-SCIENCE A. 18:553-566

A conventional French railway track was instrumented with accelerometers and geophones at three depths: sleeper (surface), interlayer (ITL, z=−0.93 m), and transition layer (TL, z=−1.20 m). A linear variable differential transformer (LVDT) was al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c4a4b7451b3ae951c681167f2f4dbaa2
https://doi.org/10.1631/jzus.a1600212

Permanent Deformation of Track-Bed Materials at Various Inclusion Contents under Large Number of Loading Cycles

Autor: Renpeng Chen, Jean-Claude Dupla, Nicolas Calon, Gilles Saussine, Jean Canou, Patrick Aimedieu, Yu-Jun Cui, Francisco Lamas-Lopez, Han Lin Wang

Publikováno v: Journal of Geotechnical and Geoenvironmental Engineering
Journal of Geotechnical and Geoenvironmental Engineering, American Society of Civil Engineers, 2018, 144 (8), pp.04018044. ⟨10.1061/(ASCE)GT.1943-5606.0001911⟩

International audience; In the French conventional railway substructure, the interpenetration of ballast grains and subgrade fine soils that occurred over years of operation has created a new layer, namely, an interlayer. The in situ investigation on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8489819155afc14168c8a82b2383a0c
https://doi.org/10.1061/(asce)gt.1943-5606.0001911