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Validation experiments for lower-bound shakedown theory applied to layered pavement systems / S. F. Brown in Géotechnique, Vol. 62 N° 10 (Octobre 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 923 –932 Titre : Validation experiments for lower-bound shakedown theory applied to layered pavement systems Type de document : texte imprimé Auteurs : S. F. Brown, Auteur ; H.-S. Yu, Auteur ; S. Juspi, Auteur Année de publication : 2012 Article en page(s) : pp. 923 –932 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Pavements  and  roads  Repeated  loading  Deformation Résumé : Experiments involving the application of moving-wheel loads to a series of two- and three-layered pavement systems, involving various soils and unbound granular materials, were used to determine the applied contact pressure ranges within which the structures may be assumed to have developed a ‘shakedown' condition. Shakedown implies that the pavement responds to loading in a resilient manner after some limited plastic deformation during the early load applications. The data were used to assess the validity of applying three-dimensional lower-bound shakedown theory to pavements as a basis for improving pavement design computations. The research indicated that this approach has considerable promise, and that further experimental validation work is desirable. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.050 [article] Validation experiments for lower-bound shakedown theory applied to layered pavement systems [texte imprimé] / S. F. Brown, Auteur ; H.-S. Yu, Auteur ; S. Juspi, Auteur . - 2012 . - pp. 923 –932. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 10 (Octobre 2012) . - pp. 923 –932 Mots-clés : Pavements  and  roads  Repeated  loading  Deformation Résumé : Experiments involving the application of moving-wheel loads to a series of two- and three-layered pavement systems, involving various soils and unbound granular materials, were used to determine the applied contact pressure ranges within which the structures may be assumed to have developed a ‘shakedown' condition. Shakedown implies that the pavement responds to loading in a resilient manner after some limited plastic deformation during the early load applications. The data were used to assess the validity of applying three-dimensional lower-bound shakedown theory to pavements as a basis for improving pavement design computations. The research indicated that this approach has considerable promise, and that further experimental validation work is desirable. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.050