The paper corresponds to the Manuel Rocha Lecture delivered by the author in October 2009. It is divided into three main parts. Part 1, Practice and Design, summarizes the most relevant excavations performed in Portugal since the 1950s, with emphasis on selected case histories. Part 2, Design and Research, discusses research work and original approaches...
View ArticleThe presence of groundwater in clayey soils is known to affect its time-dependent behaviour. This paper presents some of the results of a parametric study performed in order to evaluate the influence of the construction technique and the soil/lining relative permeability, in the time-dependent behaviour of a shallow tunnel in overconsolidated clay. The ...
View ArticleThis paper presents a brief review about site investigation procedures for contaminated sites recommended by Brazilian and Canadian environmental agencies as well as discusses the theme of geo-environmental investigation as applied to Brazilian practice. The main definitions on the theme are reviewed and some guidelines are proposed for conducting a geo...
View ArticleThis paper shows the use of fuzzy logic to evaluate the effectiveness of the reinforcement of Santa Branca dam. The embankment reinforcement was found imperative once the dam had shown signs of instability process, as undesirable seepage and unexpected movements, just after the first impoundment. Stability analyses were carried out considering fuzzy var...
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