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Author: C
41
Vol

Effects of the Addition of Dihydrate Phosphogypsum on the Characterization and Mechanical Behavior of Lateritic Clay

May 16, 2018
This paper presents the effect of adding dihydrate phosphogypsum, which is a byproduct of the production of phosphate fertilizers, on the mechanical behaviour of a lateritic clay typical of Brazil’s Midwest region. Because of the distinction of the mechanical behaviours of both materials, laboratory experiments were conducted with soil, phosphogypsum and mixture...
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41
Vol

Stress-Strain Analysis of a Concrete Dam in Predominantly Anisotropic Residual Soil

July 04, 2018
Studies of foundations for dams should take into account the study of the behavior of the rocky mass, primarily the stresses and strains expected during the construction and post-construction period. When these structures are supported on sound rock, the use of concrete dams is favored. However, when the foundation is made up of soil or soft rock, earth dams are...
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41
Vol

Assessment of the Stress History of Quaternary Clay from Piezocone Tests

May 16, 2018
This paper highlights the importance of linking regional geology to geotechnical ground investigation when estimating the pre-consolidation pressure σ’p of Quaternary clay deposits from piezocone tests. The work comprises a comprehensive site characterization from boring logs, piezocone tests and laboratory oedometer tests carried out at the Tubar&atild...
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41
Vol

Case Study: Stability Assessment in Underground Excavations at Vazante Mine - Brazil

June 06, 2018

Currently, most studies on stability of underground excavations include two separate analyses: the elastoplastic behavior of rock masses and/or kinematic analysis of possible wedges and blocks formed in the excavation walls. This paper presents a case study carried out at the Vazante Zinc Mine in Minas Gerais, Brazil, where studies on stability of under...

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