Les Inscriptions à la Bibliothèque sont ouvertes en
ligne via le site: https://biblio.enp.edu.dz
Les Réinscriptions se font à :
• La Bibliothèque Annexe pour les étudiants en
2ème Année CPST
• La Bibliothèque Centrale pour les étudiants en Spécialités
A partir de cette page vous pouvez :
Retourner au premier écran avec les recherches... |
Détail de l'auteur
Auteur Daniela Boldini
Documents disponibles écrits par cet auteur
Affiner la rechercheGeomechanical characterization of the volcaniclastic material involved in the 2002 landslides at stromboli / Tatiana Rotonda in Journal of geotechnical and geoenvironmental engineering, Vol. 136 N° 2 (Fevrier 2010)
[article]
in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 2 (Fevrier 2010) . - pp. 389-401
Titre : Geomechanical characterization of the volcaniclastic material involved in the 2002 landslides at stromboli Type de document : texte imprimé Auteurs : Tatiana Rotonda, Auteur ; Paolo Tommasi, Auteur ; Daniela Boldini, Auteur Article en page(s) : pp. 389-401 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Volcanic rocks Shear strength Laboratory test Landslides Volcaniclastic soil Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : During the 2002 eruption, the NW flank of Stromboli volcano (Southern Italy) experienced large landslides that produced tsunami waves with a maximum runup of 10 m in height. This paper focuses on the geomechanical behavior of the loose volcaniclastic layers, the weakest component of the deposit forming the volcano flank. Tests on the coarse-grained volcaniclastic soil and on the rock material forming the grains were conducted in dry conditions, a feature of the subaerial slope. The rock material, in spite of its high porosity, exhibits relatively high stiffness and strength due to the remarkable continuity of the solid skeleton. Accordingly, the volcaniclastic soil is characterized by high shear strength. During shear tests, however, significant grain crushing occurs, which partly explains the nonlinear shear strength envelope and the strain softening associated with contractive behavior. Grain crushing was also found to affect compressibility and its time dependency, investigated under oedometric conditions.
DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JGGEFK&smode=strres [...] [article] Geomechanical characterization of the volcaniclastic material involved in the 2002 landslides at stromboli [texte imprimé] / Tatiana Rotonda, Auteur ; Paolo Tommasi, Auteur ; Daniela Boldini, Auteur . - pp. 389-401.
Géotechnique
Langues : Anglais (eng)
in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 2 (Fevrier 2010) . - pp. 389-401
Mots-clés : Volcanic rocks Shear strength Laboratory test Landslides Volcaniclastic soil Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : During the 2002 eruption, the NW flank of Stromboli volcano (Southern Italy) experienced large landslides that produced tsunami waves with a maximum runup of 10 m in height. This paper focuses on the geomechanical behavior of the loose volcaniclastic layers, the weakest component of the deposit forming the volcano flank. Tests on the coarse-grained volcaniclastic soil and on the rock material forming the grains were conducted in dry conditions, a feature of the subaerial slope. The rock material, in spite of its high porosity, exhibits relatively high stiffness and strength due to the remarkable continuity of the solid skeleton. Accordingly, the volcaniclastic soil is characterized by high shear strength. During shear tests, however, significant grain crushing occurs, which partly explains the nonlinear shear strength envelope and the strain softening associated with contractive behavior. Grain crushing was also found to affect compressibility and its time dependency, investigated under oedometric conditions.
DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JGGEFK&smode=strres [...] Influence of hydro-mechanical coupling on tunnel response in clays / Alessandro Graziani in Journal of geotechnical and geoenvironmental engineering, Vol. 138 N° 3 (Mars 2012)
[article]
in Journal of geotechnical and geoenvironmental engineering > Vol. 138 N° 3 (Mars 2012) . - pp. 415-418
Titre : Influence of hydro-mechanical coupling on tunnel response in clays Type de document : texte imprimé Auteurs : Alessandro Graziani, Auteur ; Daniela Boldini, Auteur Année de publication : 2012 Article en page(s) : pp. 415-418 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Deep tunnels Clayey soils Hydro-mechanical coupling Analytical solutions Numerical modeling Résumé : The design of deep tunnels underneath the water-table in clayey soils should carefully take into account the influence of pore pressures and seepage forces on the stability of the excavation and on the loading conditions of the support systems. This paper focuses on the application of analytical solutions and numerical models to the analysis of stress and deformation around deep tunnels, in the short and long term, considering the idealized situation of axisymmetric conditions. General remarks on the influence of hydro-mechanical coupling, artificial boundary conditions and lining permeability are presented. Theoretical predictions are compared with measurements made in tunnels excavated in the Boom clay formation at Mol (Belgium). DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v138/i3/p415_s1?isAuthorized=no [article] Influence of hydro-mechanical coupling on tunnel response in clays [texte imprimé] / Alessandro Graziani, Auteur ; Daniela Boldini, Auteur . - 2012 . - pp. 415-418.
Géotechnique
Langues : Anglais (eng)
in Journal of geotechnical and geoenvironmental engineering > Vol. 138 N° 3 (Mars 2012) . - pp. 415-418
Mots-clés : Deep tunnels Clayey soils Hydro-mechanical coupling Analytical solutions Numerical modeling Résumé : The design of deep tunnels underneath the water-table in clayey soils should carefully take into account the influence of pore pressures and seepage forces on the stability of the excavation and on the loading conditions of the support systems. This paper focuses on the application of analytical solutions and numerical models to the analysis of stress and deformation around deep tunnels, in the short and long term, considering the idealized situation of axisymmetric conditions. General remarks on the influence of hydro-mechanical coupling, artificial boundary conditions and lining permeability are presented. Theoretical predictions are compared with measurements made in tunnels excavated in the Boom clay formation at Mol (Belgium). DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v138/i3/p415_s1?isAuthorized=no