Triaxial Test
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Study of soils used with subgrade and sub-ballast in Brazilian railways
Abstract Brazil has an extremely limited railroad network compared to other developed and developing countries. There are projects to expand this mesh. Knowing that the cost of implementing a railroad is high, research for solutions that allow cost reduction is of great importance. But the parameters of the materials used in the subgrade and sub-ballast laye
REM - International Engineering Journal. Publicado em: 2022
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2. EFFECT OF WAVELET DE-NOISING ON THE CLASSIFICATION OF PIG BEHAVIOUR
ABSTRACT To efficiently eliminate the noise generated by the triaxial accelerometer when collecting pigs’ behavioural data, this paper adopted SNR and MSE as the indexes to evaluate the de-noising effect of pigs’ acceleration signal under various combinations of wavelet basis, decomposition layer, threshold rule and threshold function. Based on the optim
Eng. Agríc.. Publicado em: 2021-05
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3. PHYSICAL ACTIVITY IN DAILY LIFE, EXERCISE CAPACITY AND QUALITY OF LIFE IN PATIENTS WITH CROHN’S DISEASE ON INFLIXIMAB-INDUCED REMISSION: A PRELIMINARY STUDY
RESUMO CONTEXTO: A atividade física na vida diária e a capacidade de exercício não tem sido avaliada em pacientes com doença de Crohn. OBJETIVO: Avaliar a atividade física na vida diária, capacidade de exercício, qualidade de vida e distúrbios de humor em pacientes com doença de Crohn moderada-grave em remissão induzida pelo infliximabe, e as
Arq. Gastroenterol.. Publicado em: 14/10/2019
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4. Depth effect on sandstone strength properties
Abstract The present article focuses on the study of different physical-mechanical parameters; it presents the results of a preliminary investigation aimed at experimental characterization. To simulate the mechanical behavior of the rock, a reference material needs to be chosen. The reference material selected is Sandstone, which is commonly used in this fie
REM, Int. Eng. J.. Publicado em: 2019-06
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5. Use of combined method, accelerometer and international physical activity questionnaire, to determinate occurence of physical inactivity in adults
Abstract Aim Evaluate and compare the proportion of PI and associated factors by IPAQ questionnaire, triaxial accelerometry and the combination of both. Adults aged ( 18 years were enrolled (n = 250). Methods We considered PI as < 600 MET-min/wk in the IPAQ total score, < 150 min/wk of moderate-to-vigorous physical activity in 7 days accelerometry, and the
Motriz: rev. educ. fis.. Publicado em: 22/06/2017
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6. A Simple One-Scale Constitutive Model for Static Liquefaction of Sand-Silt Mixtures
Abstract Instability of liquefaction is one of the major reasons which results in the failure of earth structure such as dam. The present study focuses on the simulation of static liquefaction behavior for granular materials such as sand and sand-silt mixtures. Based on micromechanical analysis of inter-particle behavior, a simple one-scale model is proposed
Lat. Am. j. solids struct.. Publicado em: 2016-11
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7. Experimental study on granite and the determination of its true strain-rate effect
To accurately determine the true strain-rate effect of granite in split Hopkinson pressure bar (SHPB) tests, systematic experimental studies from quasi-static to dynamic loading on the same batch of granite samples is required. Therefore, firstly, splitting, uniaxial and triaxial compression tests were used to study the mechanical response of granite under d
Lat. Am. j. solids struct.. Publicado em: 2015-08
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8. Workability studies on Al+2.5%TiO2+Gr powder metallurgy composites during cold upsetting
Al+2.5%TiO2+Gr composites were synthesized through powder metallurgy technique and their workability behavior has been studied under tri-axial stress state condition. The powders were compacted using suitable punch and die in 400 kN hydraulic press and sintered at a temperature of about 590 ºC for a period of 3 hours in an electric muffle furnace. The sinte
Mat. Res.. Publicado em: 2014-12
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9. Resistência de um solo não saturado a partir de ensaios com teor de umidade constante (CW) / Shear strength of an unsaturated soil from constant water content tests
In many parts of the world, geotechnical engineers frequently deal with unsaturated soils, and the performance of constructions on such soils depends on their mechanical characteristics, and among them, the shear strength. The unsaturated soil shear strength can be experimentally determined by using techniques which allow soil suction control or measurement
Publicado em: 2010
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10. Caracterização geotécnica da sensibilidade de um depósito sedimentar do Rio Grande do Sul com o uso de ensaios de laboratório
Um dos maiores problemas na utilização de ensaios geotécnicos de laboratório está na obtenção de amostras indeformadas. Os solos moles estão entre os mais difíceis de amostrar e há um grande trabalho de pesquisa no desenvolvimento de técnicas de amostragem. A fim de obter amostras de alta qualidade para o estudo do comportamento do material do dep
Publicado em: 2009
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11. Study of the mechanical behavior of soils for flexible pavement design using repeated loads triaxial test data / Comportamento mecânico de alguns tipos de solo através de ensaios triaxiais de cargas repetidas para projetos de pavimentos rodoviários
Este trabalho direcionou-se ao estudo do comportamento mecânico de solos quando utilizados como materiais rodoviários, compondo as camadas de subleito e reforço de subleitos de rodovia, tendo por objetivo principal determinar a deformação permanente e suas contribuições no surgimento das trilhas-de-roda em um pavimento flexível hipotético. Os solos
Publicado em: 2009
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12. tropical soils, bentonite, hydraulic conductivity, compatibility, barriers. / CONDUTIVIDADE HIDRÁULICA E COMPATIBILIDADE EM COMBINAÇÕES DE SOLO TROPICAL E BENTONITA PARA USO EM BARREIRAS
Barriers are key elements for the environmental protection in waste disposal sites. Additionally, compacted tropical soils have great potential to be used in these barriers, once some technical matters are correctly addressed, including low hydraulic conductivity and adequate compatibility to the disposed fluids. In this context, the bentonite addition in tr
Publicado em: 2009