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Author(s): M. Matos Fernandes
António Silva Cardoso
A. Topa Gomes
José Leitão Borges
Nuno C. Guerra
A. N. Antão
Title: Deep excavations in urban areas - finite element modelling for three geotechnical scenarios
Issue Date: 2012
Abstract: In the last decades large and deep cut-and-cover excavations for basements and fortransport infrastructures became very common in urban areas. The solutions that have been constructedcomprehend a large number of structural systems and soil-structure interaction problems. Among thedistinct geotechnical works, deep excavations and their retaining structures were probably the ones whoseanalysis and design experienced more progress by the use of finite element models since the seventies. Thechapter presents three topics which are not much widely treated in the specialized bibliography and thathave been of major concern of FEUPs geotechnical group and co-workers: deep excavations in thickdeposits of soft clay and rules for a reliable control of the excavation induced movements, with emphasison the influence of settlements during the consolidation period; vertical stability of permanent Berlintypewalls in stiff cohesive soils, combining distinct types of numerical modelling, including finite elementlimit analyses, since the purpose was to characterize a retaining structure under marginal stabilityconditions; elliptical shafts constructed by the sequential excavation method, a novel type of structureparticularly convenient in granite residual soils. Finally, some ideas are presented on possible future developmentsin the field.
Subject: Engenharia civil
Civil engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia civil
Engineering and technology::Civil engineering
Source: Innovative Numerical Modelling in Geomechanics
Document Type: Capítulo ou Parte de Livro
Rights: restrictedAccess
Appears in Collections:FEUP - Capítulo ou Parte de Livro

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