The foundation for the new Petrobras headquarters building in Salvador, Bahia, northwest of Brazil, had barrette pile rock socketed units chosen as the best engineering solution, due to shallow top rock, given schedule and cost. Even though the soil strata was stiff to very stiff silt, the required design load was not able to be based on soil side resis...
View ArticleResearches on the impact of the confining pressure on the permeability characteristics of non-Darcy flow in rocks during the post-failure behaviour plays a significant role in the instability of the non-Darcy flow systems. The permeability characteristics of non-Darcy flow under different confining pressures is studied using a patented device combined w...
View ArticleAn experimental technique, using a computer controlled triaxial test to evaluate the coefficient of earth pressure at rest, K0, is presented. The method does not require the use of any radial measurement transducers and is free from any side friction effects, typical of oedometer testing. It uses commercial so...
View ArticleWhen soils are inundated with liquids other than water, a physicochemical interaction takes place and can alter the soil behavior. Depending on the type of soil and on the solution, the soil can become more compressible and lose strength (or the contrary). In this paper, tropical residual gneiss soils are used, namely lateritic and saprolitic soils. The...
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