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Consolidation of a double-layered compressible foundation partially penetrated by deep mixed columns / Linchang Miao in Journal of geotechnical and geoenvironmental engineering, Vol. 134 n°8 (Août 2008) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 134 n°8 (Août 2008) . - pp. 1210–1214 Titre : Consolidation of a double-layered compressible foundation partially penetrated by deep mixed columns Type de document : texte imprimé Auteurs : Linchang Miao, Auteur ; Xinhui Wang, Auteur ; Edward Jr Kavazanjian, Auteur Année de publication : 2008 Article en page(s) : pp. 1210–1214 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Consolidation  Foundations  Clays  Columns  Soft  soils Résumé : Deep mixed columns often penetrate partially into the soft soil as floating columns due to the depth of the end-bearing layer. Partially penetrated soft soil by columns and the underlying compressible soft soil create a double-layered compressible foundation. So far, no reasonable solution is available to estimate the consolidation of such a double-layered foundation. This paper proposes an analytical solution for consolidation of a double-layered compressible foundation partially penetrated by deep mixed columns considering one-side or two-side vertical drainage The Laplace transform method was used to solve the consolidation equation for the double-layered system while Stehfest’s algorithm was used to solve the inverse Laplace transform for time-dependent loading. A consolidation algorithm was used to calculate the time-settlement relationship of an embankment constructed upon the double-layered foundation partially penetrated by deep mixed columns. The calculated settlements were compared well with field measurements. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A8%2812 [...] [article] Consolidation of a double-layered compressible foundation partially penetrated by deep mixed columns [texte imprimé] / Linchang Miao, Auteur ; Xinhui Wang, Auteur ; Edward Jr Kavazanjian, Auteur . - 2008 . - pp. 1210–1214. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 134 n°8 (Août 2008) . - pp. 1210–1214 Mots-clés : Consolidation  Foundations  Clays  Columns  Soft  soils Résumé : Deep mixed columns often penetrate partially into the soft soil as floating columns due to the depth of the end-bearing layer. Partially penetrated soft soil by columns and the underlying compressible soft soil create a double-layered compressible foundation. So far, no reasonable solution is available to estimate the consolidation of such a double-layered foundation. This paper proposes an analytical solution for consolidation of a double-layered compressible foundation partially penetrated by deep mixed columns considering one-side or two-side vertical drainage The Laplace transform method was used to solve the consolidation equation for the double-layered system while Stehfest’s algorithm was used to solve the inverse Laplace transform for time-dependent loading. A consolidation algorithm was used to calculate the time-settlement relationship of an embankment constructed upon the double-layered foundation partially penetrated by deep mixed columns. The calculated settlements were compared well with field measurements. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A8%2812 [...]