Passer à la navigation principale Passer à la recherche Passer au contenu principal

Effect of water content on long-term cyclic behaviour of railway track-bed materials

  • F. Lamas-Lopez
  • , Y. J. Cui
  • , J. C. Dupla
  • , A. M. Tang
  • , J. Canou
  • , N. Calon
  • , S. Costa D’Aguiar

Résultats de recherche: Le chapitre dans un livre, un rapport, une anthologie ou une collectionContribution à une conférenceRevue par des pairs

Résumé

The ‘Interlayer’ soil in the French conventional railways track-beds, a coarse grain soil with low permeability, was studied at different hydric conditions: w=4% (OPM) and w=10% (Saturated) using a large-scale triaxial (ø=300 mm) cell. For each test, 5 different cyclic loading levels has been considered (from Δq=10 kPa toΔq=30 kPa per cycle).The loading levels simulate the real loading at the interlayer depth in a real railway track-bed. The results clearly showthe influence of the non-saturation on the evolution of elastic modulus and damping ratio. When the loading level is increased, the elastic modulus decreases and the damping ratio increases. The accumulation of plastic strains after 90000 cycles was also analyzed for both hydric conditions, showing that the initial moisture content and the elastic modulus greatly affect the accumulative strains.

langue originaleAnglais
titreUnsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils
rédacteurs en chefZhenghan Chen, Changfu Wei, Dean Sun, Yongfu Xu
EditeurCRC Press/Balkema
Pages889-894
Nombre de pages6
ISBN (imprimé)9781138029217
Les DOIs
étatPublié - 1 janv. 2016
Modification externeOui
Evénement6th Asia-Pacific Conference on Unsaturated Soil Mechanics from Theory to Practice, AP-UNSAT 2015 - Guilin, Chine
Durée: 23 oct. 201526 oct. 2015

Série de publications

NomUnsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils

Une conférence

Une conférence6th Asia-Pacific Conference on Unsaturated Soil Mechanics from Theory to Practice, AP-UNSAT 2015
Pays/TerritoireChine
La villeGuilin
période23/10/1526/10/15

Empreinte digitale

Examiner les sujets de recherche de « Effect of water content on long-term cyclic behaviour of railway track-bed materials ». Ensemble, ils forment une empreinte digitale unique.

Contient cette citation