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Experimental study of the earth pressure distribution on cylindrical shafts / Tatiana Tobar in Journal of geotechnical and geoenvironmental engineering, Vol. 137 N° 11 (Novembre 2011) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 11 (Novembre 2011) . - pp. 1121-1125 Titre : Experimental study of the earth pressure distribution on cylindrical shafts Type de document : texte imprimé Auteurs : Tatiana Tobar, Auteur ; Mohamed A. Meguid, Auteur Année de publication : 2012 Article en page(s) : pp. 1121-1125 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Vertical  shafts  Soft  ground  Axisymmetric  earth  pressure  Physical  models  Cylindrical  retaining  walls Résumé : This paper describes the results from an experimental program that has been conducted to investigate the distribution of earth pressure on a cylindrical wall embedded in granular material and subjected to radial displacement. The model shaft has been designed and built using mechanically adjustable segments to control the magnitude and uniformity of the wall movement during the tests. A series of experiments have been performed, and the progressive changes in earth pressure along the shaft have been continuously measured for different wall displacements. Results indicated a rapid decrease in lateral earth pressure when a small wall movement was introduced. When the wall movement reached about 2.5% of the shaft radius, the earth pressure distribution along the shaft became uniform and independent of any additional wall displacement. The experimental results are also compared with some of the available theoretical solutions, and the applicability of these solutions is then examined. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i11/p1121_s1?isAuthorized=no [article] Experimental study of the earth pressure distribution on cylindrical shafts [texte imprimé] / Tatiana Tobar, Auteur ; Mohamed A. Meguid, Auteur . - 2012 . - pp. 1121-1125. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 11 (Novembre 2011) . - pp. 1121-1125 Mots-clés : Vertical  shafts  Soft  ground  Axisymmetric  earth  pressure  Physical  models  Cylindrical  retaining  walls Résumé : This paper describes the results from an experimental program that has been conducted to investigate the distribution of earth pressure on a cylindrical wall embedded in granular material and subjected to radial displacement. The model shaft has been designed and built using mechanically adjustable segments to control the magnitude and uniformity of the wall movement during the tests. A series of experiments have been performed, and the progressive changes in earth pressure along the shaft have been continuously measured for different wall displacements. Results indicated a rapid decrease in lateral earth pressure when a small wall movement was introduced. When the wall movement reached about 2.5% of the shaft radius, the earth pressure distribution along the shaft became uniform and independent of any additional wall displacement. The experimental results are also compared with some of the available theoretical solutions, and the applicability of these solutions is then examined. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i11/p1121_s1?isAuthorized=no