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Hydraulic behavior of filter protected silt under cyclic flow / Lun Chen in Journal of geotechnical and geoenvironmental engineering, Vol. 135 N° 8 (Août 2009) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 135 N° 8 (Août 2009) . - pp. 1159–1166 Titre : Hydraulic behavior of filter protected silt under cyclic flow Type de document : texte imprimé Auteurs : Lun Chen, Auteur ; Yan-Feng Zhuang, Auteur ; Zhao Wang, Auteur Année de publication : 2009 Article en page(s) : pp. 1159–1166 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Soil  water  Filtration  Hydraulic  gradients  Silts Résumé : The spatial distribution of hydraulic gradients within a soil sample under cyclic flow with different frequencies was measured and compared with calculated results. The permeability within the soil before and after cyclic flow was compared. This study shows that a lower ratio of consolidation coefficient of the soil to the angular velocity of cyclic flow will result in higher hydraulic gradients at the boundaries, and lower gradients within the soil. This study suggests that besides geometrical parameters of soil and geosynthetics, the consolidation coefficient of the soil and the frequency of cyclic flow need to be considered as well in the design of filters under cyclic flow. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000009 [article] Hydraulic behavior of filter protected silt under cyclic flow [texte imprimé] / Lun Chen, Auteur ; Yan-Feng Zhuang, Auteur ; Zhao Wang, Auteur . - 2009 . - pp. 1159–1166. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 135 N° 8 (Août 2009) . - pp. 1159–1166 Mots-clés : Soil  water  Filtration  Hydraulic  gradients  Silts Résumé : The spatial distribution of hydraulic gradients within a soil sample under cyclic flow with different frequencies was measured and compared with calculated results. The permeability within the soil before and after cyclic flow was compared. This study shows that a lower ratio of consolidation coefficient of the soil to the angular velocity of cyclic flow will result in higher hydraulic gradients at the boundaries, and lower gradients within the soil. This study suggests that besides geometrical parameters of soil and geosynthetics, the consolidation coefficient of the soil and the frequency of cyclic flow need to be considered as well in the design of filters under cyclic flow. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000009