Documents disponibles écrits par cet auteur

Analytical method for load-transfer characteristics of rock-socketed drilled shafts / Hoonil Seol in Journal of geotechnical and geoenvironmental engineering, Vol. 135 N° 6 (Juin 2009) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 135 N° 6 (Juin 2009) . - pp. 778–789 Titre : Analytical method for load-transfer characteristics of rock-socketed drilled shafts Type de document : texte imprimé Auteurs : Hoonil Seol, Auteur ; Sangseom Jeong, Auteur ; Sunghan Cho, Auteur Année de publication : 2009 Article en page(s) : pp. 778–789 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Drilled  shafts  Load  transfer  Stiffness  Roughness  Load  distribution  Rocks  Deformation Résumé : The load-settlement behavior of rock-socketed drilled shafts under axial loading is investigated by a load-transfer approach. Special attention is given to the shear load-transfer function and an analytical method for estimating load-transfer characteristics of rock-socketed drilled shafts. A nonlinear triple curve is employed to determine the shear load-transfer function of rock-socketed drilled shafts based on the constant normal stiffness direct shear tests and the Hoek-Brown failure criterion. An analytical method that takes into account the soil coupling effect was developed using a modified Mindlin’s point load solution. Through comparisons with field case studies, it is found that the proposed methodology in the present study is in good agreement with the general trend observed by in situ measurements and, thus, represents a significant improvement in the prediction of drilled shaft shear behavior. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282009%29135%3A6%2877 [...] [article] Analytical method for load-transfer characteristics of rock-socketed drilled shafts [texte imprimé] / Hoonil Seol, Auteur ; Sangseom Jeong, Auteur ; Sunghan Cho, Auteur . - 2009 . - pp. 778–789. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 135 N° 6 (Juin 2009) . - pp. 778–789 Mots-clés : Drilled  shafts  Load  transfer  Stiffness  Roughness  Load  distribution  Rocks  Deformation Résumé : The load-settlement behavior of rock-socketed drilled shafts under axial loading is investigated by a load-transfer approach. Special attention is given to the shear load-transfer function and an analytical method for estimating load-transfer characteristics of rock-socketed drilled shafts. A nonlinear triple curve is employed to determine the shear load-transfer function of rock-socketed drilled shafts based on the constant normal stiffness direct shear tests and the Hoek-Brown failure criterion. An analytical method that takes into account the soil coupling effect was developed using a modified Mindlin’s point load solution. Through comparisons with field case studies, it is found that the proposed methodology in the present study is in good agreement with the general trend observed by in situ measurements and, thus, represents a significant improvement in the prediction of drilled shaft shear behavior. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282009%29135%3A6%2877 [...]

Wedge failure analysis of soil resistance on laterally loaded piles in clay / Youngho Kim in Journal of geotechnical and geoenvironmental engineering, Vol. 137 N° 7 (Juillet 2011) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 7 (Juillet 2011) . - pp. 678-694 Titre : Wedge failure analysis of soil resistance on laterally loaded piles in clay Type de document : texte imprimé Auteurs : Youngho Kim, Auteur ; Sangseom Jeong, Auteur ; Sungjune Lee, Auteur Année de publication : 2011 Article en page(s) : pp. 678-694 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Lateral  load  transfer  p-yp-y  curve  Three-dimensional  combination  forceWedge  failure  model  Clay  soil Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : A fundamental study of pile-soil systems subjected to lateral loads in clay soil was conducted by using experimental tests and a lateral load-transfer approach. The emphasis was on an improved wedge failure model developed by considering three-dimensional combination forces and a new hyperbolic p-y criterion. A framework for determining the p-y curve on the basis of both theoretical analysis and experimental load test results is proposed. The proposed p-y method is shown to be capable of predicting the behavior of a large-diameter pile under lateral loading. The proposed p-y curves with an improved wedge model are more appropriate and realistic for representing a pile-soil interaction for laterally loaded piles in clay than the existing p-y method. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i7/p678_s1?isAuthorized=no [article] Wedge failure analysis of soil resistance on laterally loaded piles in clay [texte imprimé] / Youngho Kim, Auteur ; Sangseom Jeong, Auteur ; Sungjune Lee, Auteur . - 2011 . - pp. 678-694. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 7 (Juillet 2011) . - pp. 678-694 Mots-clés : Lateral  load  transfer  p-yp-y  curve  Three-dimensional  combination  forceWedge  failure  model  Clay  soil Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : A fundamental study of pile-soil systems subjected to lateral loads in clay soil was conducted by using experimental tests and a lateral load-transfer approach. The emphasis was on an improved wedge failure model developed by considering three-dimensional combination forces and a new hyperbolic p-y criterion. A framework for determining the p-y curve on the basis of both theoretical analysis and experimental load test results is proposed. The proposed p-y method is shown to be capable of predicting the behavior of a large-diameter pile under lateral loading. The proposed p-y curves with an improved wedge model are more appropriate and realistic for representing a pile-soil interaction for laterally loaded piles in clay than the existing p-y method. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i7/p678_s1?isAuthorized=no