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Simple approach to predicting ground displacements caused by tunnelling in undrained anisotropic elastic soil / A. M. Puzrin in Géotechnique, Vol. 62 N° 4 (Avril 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 4 (Avril 2012) . - pp. 341–352 Titre : Simple approach to predicting ground displacements caused by tunnelling in undrained anisotropic elastic soil Type de document : texte imprimé Auteurs : A. M. Puzrin, Auteur ; J. B. Burland, Auteur ; J.R. Standing, Auteur Année de publication : 2012 Article en page(s) : pp. 341–352 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Anisotrop  Settlement  Tunnels Résumé : An attempt to develop a kinematically based approach to predicting ground settlements due to tunnelling is represented, by using the more reliable data of the commonly observed settlement troughs, rather than imposing the boundary conditions on the tunnel surface, which have a high level of uncertainty. The anisotropic elastic model used in this work is highly simplified, and the resulting analytical solution is of an approximate nature. Nevertheless, it seems to provide good agreement with both the shape and the magnitude of the observed settlement trough. Based on this solution, a modification is proposed for the widely used empirical Gaussian curve, by correlating the trough width parameter K with the ratio between the two anisotropic shear moduli, G hh/G vh. DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/issue/geot/62/4# [article] Simple approach to predicting ground displacements caused by tunnelling in undrained anisotropic elastic soil [texte imprimé] / A. M. Puzrin, Auteur ; J. B. Burland, Auteur ; J.R. Standing, Auteur . - 2012 . - pp. 341–352. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 4 (Avril 2012) . - pp. 341–352 Mots-clés : Anisotrop  Settlement  Tunnels Résumé : An attempt to develop a kinematically based approach to predicting ground settlements due to tunnelling is represented, by using the more reliable data of the commonly observed settlement troughs, rather than imposing the boundary conditions on the tunnel surface, which have a high level of uncertainty. The anisotropic elastic model used in this work is highly simplified, and the resulting analytical solution is of an approximate nature. Nevertheless, it seems to provide good agreement with both the shape and the magnitude of the observed settlement trough. Based on this solution, a modification is proposed for the widely used empirical Gaussian curve, by correlating the trough width parameter K with the ratio between the two anisotropic shear moduli, G hh/G vh. DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/issue/geot/62/4#