Stability analysis of strain-softening slope reinforced with stabilizing piles / Ga Zhang in Journal of geotechnical and geoenvironmental engineering, Vol. 136 N° 11 (Novembre 2010)  

Public ISBD [article]  inJournal of geotechnical and geoenvironmental engineering > Vol. 136 N° 11 (Novembre 2010) . - pp. 1578-1582 Titre : Stability analysis of strain-softening slope reinforced with stabilizing piles Type de document : texte imprimé Auteurs : Ga Zhang, Auteur ; Liping Wang, Auteur Année de publication : 2011 Article en page(s) : pp. 1578-1582 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Slopes Stability Strain softening Piles Reinforcement Soil-pile interaction Evaluation Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : Stabilizing piles have been used extensively over the past few decades to support unstable slopes. A new simplified method is described to analyze the stability level of a strain-softening slope reinforced with stabilizing piles. An equivalent principle is proposed to account for the three-dimensional effect of the piles on the stability level of slopes. The formulation is derived on the basis of the displacement distribution assumptions of the slope by extending the simplified Bishop slice method. The parameters can be easily determined by element tests. This method is used on a real-world slope to discuss the influential factors. The results show that the slope geometry and pile layout, which includes pile spacing, pile location, and pile depth, have a significant effect on the safety factor and critical slip surface of the reinforced slope. The stability level of a strain-softening slope is dependent not only on the strength parameters but also on the stress-strain relationship of soil. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v136/i11/p1578_s1?isAuthorized=no [article] Stability analysis of strain-softening slope reinforced with stabilizing piles [texte imprimé] / Ga Zhang, Auteur ; Liping Wang, Auteur . - 2011 . - pp. 1578-1582. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 136 N° 11 (Novembre 2010) . - pp. 1578-1582 Mots-clés : Slopes Stability Strain softening Piles Reinforcement Soil-pile interaction Evaluation Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : Stabilizing piles have been used extensively over the past few decades to support unstable slopes. A new simplified method is described to analyze the stability level of a strain-softening slope reinforced with stabilizing piles. An equivalent principle is proposed to account for the three-dimensional effect of the piles on the stability level of slopes. The formulation is derived on the basis of the displacement distribution assumptions of the slope by extending the simplified Bishop slice method. The parameters can be easily determined by element tests. This method is used on a real-world slope to discuss the influential factors. The results show that the slope geometry and pile layout, which includes pile spacing, pile location, and pile depth, have a significant effect on the safety factor and critical slip surface of the reinforced slope. The stability level of a strain-softening slope is dependent not only on the strength parameters but also on the stress-strain relationship of soil. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v136/i11/p1578_s1?isAuthorized=no

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