Shrinkage and swelling of clay soil / Céline Andrieux in European journal of environmental and civil engineering, Vol. 15 N° 5 (Mai 2011)  

Public ISBD [article]  inEuropean journal of environmental and civil engineering > Vol. 15 N° 5 (Mai 2011) . - pp. 819-838 Titre : Shrinkage and swelling of clay soil : Comparison between laboratory and in situ measurements Type de document : texte imprimé Auteurs : Céline Andrieux, Auteur ; Marie Chrétien, Auteur ; Alain Denis, Auteur Année de publication : 2011 Article en page(s) : pp. 819-838 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Clayed soil Shrinkage and swelling Free Linear shrinkage factor Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper presents the results of the shrinkage and swelling behavior of clay soils in a geological formation in the laboratory and in situ. Free swelling and drying tests on undisturbed samples, from an experimental site in the Gironde department (33) in France, have allowed theoretical displacements to be computed, starting from the free swelling parameter g (%) and the linear shrinkage factor Rl (-). The computed displacements are of the order of millimeters in swelling and centimeters in shrinkage, whereas on the experimental site, they are of the order of millimeters during an annual cycle. However, following a second year of in situ measurements, we observed a cumulative settlement effect of the order of one centimeter. By comparing the results obtained, we revealed the influence of various factors, such as lithological variabilities at different scales, and repetitive shrinkage-swelling cycles, on the behavior of clay soils. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/article.jsp?articleId=16150 [article] Shrinkage and swelling of clay soil : Comparison between laboratory and in situ measurements [texte imprimé] / Céline Andrieux, Auteur ; Marie Chrétien, Auteur ; Alain Denis, Auteur . - 2011 . - pp. 819-838. Génie Civil Langues : Anglais (eng) in European journal of environmental and civil engineering > Vol. 15 N° 5 (Mai 2011) . - pp. 819-838 Mots-clés : Clayed soil Shrinkage and swelling Free Linear shrinkage factor Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper presents the results of the shrinkage and swelling behavior of clay soils in a geological formation in the laboratory and in situ. Free swelling and drying tests on undisturbed samples, from an experimental site in the Gironde department (33) in France, have allowed theoretical displacements to be computed, starting from the free swelling parameter g (%) and the linear shrinkage factor Rl (-). The computed displacements are of the order of millimeters in swelling and centimeters in shrinkage, whereas on the experimental site, they are of the order of millimeters during an annual cycle. However, following a second year of in situ measurements, we observed a cumulative settlement effect of the order of one centimeter. By comparing the results obtained, we revealed the influence of various factors, such as lithological variabilities at different scales, and repetitive shrinkage-swelling cycles, on the behavior of clay soils. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/article.jsp?articleId=16150

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