Central artery/tunnel project excavation induced ground deformations / Youssef M.A. Hashash in Journal of geotechnical and geoenvironmental engineering, Vol. 134 n°9 (Septembre 2008)  

Public ISBD [article]  inJournal of geotechnical and geoenvironmental engineering > Vol. 134 n°9 (Septembre 2008) . - pp. 1399–1406 Titre : Central artery/tunnel project excavation induced ground deformations Type de document : texte imprimé Auteurs : Youssef M.A. Hashash, Auteur ; Abdolreza Osouli, Auteur ; Camilo Marulanda, Auteur Année de publication : 2008 Article en page(s) : pp. 1399–1406 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Excavation Soil deformation Tunnels Urban areas Résumé : Estimate of deformations around urban excavations is a primary concern for designers, contractors, owners, and potentially affected third parties. Significant efforts have gone into the development of empirically based methods to estimate deformations relying on a large number of case histories. The construction of the deep excavations for the central artery/tunnel project provides valuable information on observed deformations due to the construction of these excavations. Lateral deformations and surface settlements for three construction contracts are collected and summarized in a form similar to published empirical charts. The stiff support system used in these braced excavation and the embedment of the wall into stiff strata control deformations to minimal levels. The data show that surface settlements, although small, extend farther away from the excavation than previously reported. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A9%2813 [...] [article] Central artery/tunnel project excavation induced ground deformations [texte imprimé] / Youssef M.A. Hashash, Auteur ; Abdolreza Osouli, Auteur ; Camilo Marulanda, Auteur . - 2008 . - pp. 1399–1406. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 134 n°9 (Septembre 2008) . - pp. 1399–1406 Mots-clés : Excavation Soil deformation Tunnels Urban areas Résumé : Estimate of deformations around urban excavations is a primary concern for designers, contractors, owners, and potentially affected third parties. Significant efforts have gone into the development of empirically based methods to estimate deformations relying on a large number of case histories. The construction of the deep excavations for the central artery/tunnel project provides valuable information on observed deformations due to the construction of these excavations. Lateral deformations and surface settlements for three construction contracts are collected and summarized in a form similar to published empirical charts. The stiff support system used in these braced excavation and the embedment of the wall into stiff strata control deformations to minimal levels. The data show that surface settlements, although small, extend farther away from the excavation than previously reported. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A9%2813 [...]

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