This paper presents the results from a preliminary inventory of natural and man-made hazards and/or disasters in Brazil. The data were collected from previous studies, aerial photographs, satellite images and field studies. The data were obtained to evaluate the spatial distribution of natural and man-made hazards and disasters in different cities and s...
View ArticleThe characteristics of the subgrade soil, obtained from laboratory and in situ tests, are of fundamental importance to the design of pavements. The tests carried out in the field, such as CBR in situ, Bredboard and others, represent more significantly the conditions of the soil. The Dynamic Cone Penetrometer (DC...
View ArticleAn engineering geological approach to analysed geo-hazards affecting engineering and planning design decisions is presented. The methodological procedures include hazard identification, hazard assessment, site vulnerability, economic cost, environmental impact, risk assessment,... View Article
The use of prefabricated vertical drains with vacuum preloading and surcharge preloading is now common practice and is proving to be one of the most effective ground improvement techniques known. The factors affecting its performance, such as the smear zone, the drain influence zone, and drain unsaturation, are discussed in this paper. In order to evalu...
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