Block element method for the seismic stability of rock slopes / Sheng-hong Chen in Journal of geotechnical and geoenvironmental engineering, Vol. 136 N° 12 (Décembre 2010)  

Public ISBD [article]  inJournal of geotechnical and geoenvironmental engineering > Vol. 136 N° 12 (Décembre 2010) . - pp. 1610-1617 Titre : Block element method for the seismic stability of rock slopes Type de document : texte imprimé Auteurs : Sheng-hong Chen, Auteur ; Weiming Wang, Auteur ; Hui-feng Zheng, Auteur Année de publication : 2011 Article en page(s) : pp. 1610-1617 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Block element method Seismic analysis Viscoelastic artificial boundary condition Rock slope Dynamic safety factor Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : The seismic stability analysis of rock slope is implemented using a block element method (BEM) in this paper. Based on the formulations of the matrices of stiffness, mass, and damping, the dynamic governing equation for the rock block system is established. The Wilson method is used to solve the dynamic governing equation, and the viscoelastic artificial boundary condition is introduced to treat the unbound domain problem. The proposed method is applied to the seismic stability analysis of the intake slope in a hydropower project, from which the dynamic safety factors of key block element combinations during earthquake and their dynamic amplification factors of acceleration are evaluated. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v136/i12/p1610_s1?isAuthorized=no [article] Block element method for the seismic stability of rock slopes [texte imprimé] / Sheng-hong Chen, Auteur ; Weiming Wang, Auteur ; Hui-feng Zheng, Auteur . - 2011 . - pp. 1610-1617. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 12 (Décembre 2010) . - pp. 1610-1617 Mots-clés : Block element method Seismic analysis Viscoelastic artificial boundary condition Rock slope Dynamic safety factor Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : The seismic stability analysis of rock slope is implemented using a block element method (BEM) in this paper. Based on the formulations of the matrices of stiffness, mass, and damping, the dynamic governing equation for the rock block system is established. The Wilson method is used to solve the dynamic governing equation, and the viscoelastic artificial boundary condition is introduced to treat the unbound domain problem. The proposed method is applied to the seismic stability analysis of the intake slope in a hydropower project, from which the dynamic safety factors of key block element combinations during earthquake and their dynamic amplification factors of acceleration are evaluated. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v136/i12/p1610_s1?isAuthorized=no

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