Triaxial Cell
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Equipment cubic triaxial for rehearsals in saturated soils and no saturated with suction controlled matric / Equipamento triaxial cúbico para ensaios em solos saturados e não-saturados com sucção matricial controlada
In tropical countries, like Brazil, soils in non saturated condition are frequently encountered. Besides, the majority of geotechnical works load the ground according to stress paths in which the three principal stresses are different and vary independently. Therefore, the need to develop equipments able to test in the laboratory non saturated soil samples f
Publicado em: 2007
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2. STRESS - STRAIN BEHAVIOR OF A GNEISS RESIDUAL SOIL USING THE CUBIC TRIAXIAL CELL / COMPORTAMIENTO TENSIÓN X DEFORMACIÓN EN SUELOS RESIDUALES / COMPORTAMENTO TENSÃO X DEFORMAÇÃO DE SOLOS RESIDUAIS NO EQUIPAMENTO TRIAXIAL
The knowledge of the mechanical behaviour of residual soils is of great importance in geotechnical projects, because of its abundance in tropical regions, such as Brazil and particularly in the area of Rio de Janeiro. The present work presents a study on the fundamental stress-strain behaviour of a residual soil resulting from a profile of a gneiss rock in R
Publicado em: 1998
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3. EFEITO DA TEMPERATURA EM SOLOS / TEMPERATURE EFFECTS ON SOILS
The subject matter of this thesis is the study of the mechanical behavior of clay and residual soils subjected to a series of tests with temperatures ranging from 20 to 70ºC. The experimental program consisted of Atterberg limits, consolidation tests with incremental loading (SIC), triaxial consolidated undrained tests (CIU) and direct shear tests on both s
Publicado em: 1998
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4. DEVELOPMENT OF A TRIAXIAL CELL FOR LABORATORY TESTS OF ROCKS / DESENVOLVIMENTO DE UMA CÉLULA PARA ENSAIOS TRIAXIAIS EM ROCHA / DESARROLLO DE UNA CÉLULA PARA ENSAYOS TRIAXIALES EN ROCAS
Rock masses are submitted to biaxial and triaxial states of stress. Deformability and strength properties of rocks under such conditions are essential data for calculating bearing capacity of foundations, design of dams, mining excavations, oil exploration, tunnelling etc. For these purposes, laboratory and in situ tests are of great importance. Studying roc
Publicado em: 1997
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5. DESENVOLVIMENTO DE UMA CÉLULA TRIAXIAL CÍCLICA SERVO CONTROLADA E ESTUDO DA SUSCEPTIBILIDADE À LIQUEFAÇÃO DE UM RESÍDUO DA LAVRA DE MINERAÇÃO DE FERRO / DEVELOPMENT OF A SERVO-CONTROLLED CYCLIC TRIAXIAL CELL AND STUDY OF THE LIQUEFACTION SUSCEPTIBILITY OF TAILINGS FROM AN IRON MINING
This work presents results of na experimental research programme executed in the laboratory at PUC-Rio, Brazil. The aim of this research was investigated the stress-strain behaviour and the evaluation of the susceptibility of fine grained tailing material from Fernandinho Mine to liquefaction. This mine is at Quadrilatero Ferrífero (Minas Gerais - Brazil),
Publicado em: 1997
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6. Ethylene Biosynthesis during Aerenchyma Formation in Roots of Maize Subjected to Mechanical Impedance and Hypoxia.
Germinated maize (Zea mays L.) seedlings were enclosed in modified triaxial cells in an artificial substrate and exposed to oxygen deficiency stress (4% oxygen, hypoxia) or to mechanical resistance to elongation growth (mechanical impedance) achieved by external pressure on the artificial substrate, or to both hypoxia and impedance simultaneously. Compared w