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Soil-structure interaction of an earth pressure cell / Gregory S. Wachman in Journal of geotechnical and geoenvironmental engineering, Vol. 137 N° 9 (Septembre 2011) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 9 (Septembre 2011) . - pp. 843-845 Titre : Soil-structure interaction of an earth pressure cell Type de document : texte imprimé Auteurs : Gregory S. Wachman, Auteur ; Joseph F. Labuz, Auteur Année de publication : 2012 Article en page(s) : pp. 843-845 Langues : Anglais (eng) Mots-clés : Calibration  Contact  pressure  Earth  pressure  Soil  stress  Soil-structure  interaction Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : The output from an earth pressure cell (EPC) is usually related to the normal stress in soil through fluid calibration, where a known pressure is applied to the EPC and the output is recorded. However, distribution of normal stress within a soil is not uniform, and the EPC is not an ideal membrane—bending stiffness affects the response. These factors complicate the performance of the EPC. A calibration procedure for an EPC is reviewed, and it is shown that these controversial sensors can provide an accurate measure of average normal stress if calibrated in soil at a given density. In addition, a soil-structure interaction model is proposed to explain why soil calibration is necessary. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i9/p843_s1?isAuthorized=no [article] Soil-structure interaction of an earth pressure cell [texte imprimé] / Gregory S. Wachman, Auteur ; Joseph F. Labuz, Auteur . - 2012 . - pp. 843-845. Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 9 (Septembre 2011) . - pp. 843-845 Mots-clés : Calibration  Contact  pressure  Earth  pressure  Soil  stress  Soil-structure  interaction Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : The output from an earth pressure cell (EPC) is usually related to the normal stress in soil through fluid calibration, where a known pressure is applied to the EPC and the output is recorded. However, distribution of normal stress within a soil is not uniform, and the EPC is not an ideal membrane—bending stiffness affects the response. These factors complicate the performance of the EPC. A calibration procedure for an EPC is reviewed, and it is shown that these controversial sensors can provide an accurate measure of average normal stress if calibrated in soil at a given density. In addition, a soil-structure interaction model is proposed to explain why soil calibration is necessary. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i9/p843_s1?isAuthorized=no