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Titre :
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Stability of steep slopes in cemented sands (2011)
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Auteurs :
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Brian D. Collins, Auteur ;
Sitar, Nicholas, Auteur
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Type de document :
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Article : texte imprimé
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Dans :
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Journal of geotechnical and geoenvironmental engineering (Vol. 137 N° 1, Janvier 2011)
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Article en page(s) :
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pp. 43-51
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Note générale :
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Géotechnique
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Langues :
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Anglais
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Index. décimale :
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624.1 (Infrastructures.Ouvrages en terre. Fondations. Tunnels)
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Tags :
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Slope stability Cemented sand Limiting equilibrium Tensile strength Lidar Cliffs Failure mode
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Résumé :
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The analysis of steep slope and cliff stability in variably cemented sands poses a significant practical challenge as routine analyses tend to underestimate the actually observed stability of existing slopes. The presented research evaluates how the degree of cementation controls the evolution of steep sand slopes and shows that the detailed slope geometry is important in determining the characteristics of the failure mode, which in turn, guide the selection of an appropriate stability analysis method. Detailed slope-profile cross sections derived from terrestrial lidar surveying of otherwise inaccessible cemented sand cliffs are used to investigate failure modes in weakly cemented [unconfined compressive strength (UCS)<30 kPa] and moderately cemented (30
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DEWEY :
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624.1
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ISSN :
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1090-0241
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En ligne :
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http://ascelibrary.org/gto/resource/1/jggefk/v137/i1/p43_s1?isAuthorized=no
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