This study analyses the real applicability of laser scanning techniques to determine bulk densities of fine grained soils. The method, fast and accurate, can be employed both in the field and laboratory. The technique was calibrated with benchmarks and then applied to measure volumes of small samples of a specific silty soil of well-known properties (gr...
View ArticleThe frequent interruption of roads in some freeways in Brazil due to slope failure has caused economic losse sand potential harm to users. The paper presents data from a monitoring system installed at Serra do Mar in Santa Catarina State, Brazil. The slope monitored is called Morro do Boi and is located on BR-101 south, near the municipality of Itapema....
View ArticleThe paper corresponds to the Pacheco Silva Lecture delivered by the author in September 2014. In the first part of the text, a general perspective of the movements induced by deep excavations in soft soils is outlined. The general report presented by Ralph B. Peck to the 1969 ISSMFE México conference is taken as reference and the pr...
View ArticleMany embankment dams completed during the first six decades of the 20th century have been found deficient relative their ability to resist currently anticipated levels of seismic shaking and probable maximum flood. In this Fourth Victor de Mello Lecture, two recent case histories are described. One is a hydraulic fill structure completed in 1920 that is...
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