This paper presents the results of a field investigation into pile setup in overconsolidated clay soil that was conducted during a period of almost seven years, at Guabirotuba Geological Formation, south of Brazil, where the experimentation site of the Federal University of Paraná is located. One driven precast prestressed concrete pile was s...
View ArticleCompacted clayey tropical soils have great potential to be used as barriers in waste disposal facilities, considering that some technical requirements are fulfilled (e.g. hydraulic conductivity; compatibility after disposal; shear strength; swelling/cracking, etc). In turn, the bentonite addition is relevant for the cases where the ...
View ArticleThe study evaluated, through a series of permeability and diffusion tests, the hydraulic and the attenuation behavior of a compacted clayey soil, with and without the addition of Portland cement (0 to 2%). To evaluate the diffusive response, the specimens were subjected to a vertical static load (100 to 500 kPa), simulating the action of a waste mass, a...
View ArticleThis paper presents a new approach to stability analysis of multi-face slopes, employing the concept of restricted daylight envelope. The methodology was applied to the back analysis of a real case of a curved, convex slope in metamorphic slates in Madrid, Spain. The Barton & Bandis (1990) criterion was employed for the field estimation of shear...
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