Geotechnical Laboratory Tests
Mostrando 13-24 de 42 artigos, teses e dissertações.
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13. Analysis of mechanical behavior of an expansive soil from the oil province of Urucu-AM for paving / Análise do comportamento mecânico de um solo expansivo da província petrolífera de Urucu-AM para fins de pavimentação
The establishment of transportation infrastructure is critical to the development of the Urucu- AM region, a newly developed oil exploration area in the Amazonas state. The construction of such infrastructure is challenging due to the lack of suitable materials for the construction pavement base and subbase courses and adverse weather conditions, with altern
Publicado em: 2009
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14. Estudo das propriedades geotécnicas de solos residuais não saturados de Ubatuba (SP). / Study of the geotechnical properties of unsaturated residual soils of Ubatuba (SP).
This doctoral thesis focusing on the study of the geotechnical properties of unsaturated residual soils occurring in the municipal district of Ubatuba, north coast of the State of Sao Paulo. The study of geotechnical properties was conducted from a macro and micromorfology approach, seeking to establish the relationship between the water present in the resid
Publicado em: 2008
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15. RESISTANCE OF INTERFACES SOILGEOSYNTHETICS: DEVELOPMENT OF EQUIPMENT AND TESTS / RESISTÊNCIA DE INTERFACES SOLO-GEOSSINTÉTICO: DESENVOLVIMENTO DE EQUIPAMENTO E ENSAIOS
The demand for better techniques of sizing motivated the development of studies capable to supply a larger understanding of the behavior of the geosynthetics when inserted in the soil mass. The interaction soil- geosynthetics it is complex, being function of the properties of the used materials, soil and geossintético, and expresses through the adhesion and
Publicado em: 2008
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16. AvaliaÃÃo da retenÃÃo de gases em camadas de cobertura de aterros de resÃduos sÃlidos
Municipal solid waste landfills final covers work as a seal interface between the wastese and the external environment. This sealing layer is also responsible to avoid the infiltration of water into the waste mass and the emission of gases to the atmosphere. These interventions show by they own how important are both project and execution of the top cover as
Publicado em: 2008
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17. Avaliação de uma sonda TDR helicoidal para a estimativa do teor de umidade de solos em campo e laboratório / Evaluation of a helicoidal TDR probe to estimate the soil water content in laboratory and in situ
In this work is presented the evaluation of a recently developed helicoidal probe used for estimating the soil water content through the time domain technology (TDR). This probe has been calibrated in laboratory for different types of soils. The calibration process consisted in assessing the values of the apparent dielectric constant (Ka) and the bulk electr
Publicado em: 2008
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18. Evaluation of field performance of cover systems at Rio Paracatu Mine (RPM) / Avaliação de desempenho de sistemas de cobertura na mina Rio Paracatu Mineração (RPM)
In view of the RPM need to study soil covering systems and the scientific interest in those studies, two experimental evapotranspirative cover systems were projected and built, one with and, the other, without, a layer of capillary barrier, both with a monitoring system composed by superficial drainage meter, lisimeters to measure infiltration and geotechnic
Publicado em: 2008
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19. AVALIAÇÃO DO TRANSPORTE DO HERBICIDA PARAQUAT EM SOLOS DO CAMPO EXPERIMENTAL DE BOM JARDIM, RJ / EVALUATION OF TRANSPORT OF HERBICIDE PARAQUAT IN SOILS OF EXPERIMENTAL FIELD OF BOM JARDIM, RJ
This paper presents results of a study, performed in the laboratory, on the mobility of the herbicide Paraquat, investigated from its percolation through soils samples withdrawn from the Experimental Field of Bom Jardim, RJ. It was determined the physical, chemical and mineralogical properties of samples collected in such manner to form a profile of ground l
Publicado em: 2008
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20. Characterization of geotechnical behavior of EPS through mechanical and hydraulic tests / Caracterização do comportamento geotécnico do EPS através de ensaios mecânicos e hidráulicos
O poliestireno expandido (EPS), conhecido popularmente no Brasil como Isopor®, foi introduzido recentemente no país como material de baixa massa específica para construções de aterros, principalmente sobre solos moles, e encontro de pontes. Contudo, ainda não há experiência consolidada deste material em ensaios do ponto de vista da engenharia geotéc
Publicado em: 2008
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21. ENSAIOS DE RAMPA E DE CISALHAMENTO DIRETO EM INTERFACES SOLO-GEOSSINTÉTICO / TILT TESTS AND DIRECT SHEAR ON SOIL-GEOSYNTHETIC INTERFACES
A aplicação de geossintéticos em obras geotécnicas vem crescendo intensamente nos últimos tempos, tornando cada vez mais importantes e necessários os estudos da resistência de interface para aplicação em projetos e obras. Em particular, tais estudos devem tratar das técnicas de ensaios de campo e de laboratório para a obtenção dos parâmetros de
Publicado em: 2008
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22. Estudo geolÃgico-geotÃcnico de uma encosta com problemas de instabilidade no MunicÃpio de Camaragibe - PE
The current work presents a study regarding the existing instability in the slope localized in the ascent of the Vale das Pedreiras, in the municipality of Camaragibe â PE. The principal objective of the research was to identify the causes and to undestand the mechanisms involved in the problem jointly with the realization of an analysis of the stability of
Publicado em: 2007
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23. EFFECT OF THE COMPACTION METHOD ON THE PERMEABILITY OF AN ORGANIC COMPOUND-COLLUVIONAR SOIL MIXTURE / INFLUÊNCIA DO MÉTODO DE COMPACTAÇÃO NA PERMEABILIDADE DE UMA MISTURA COLÚVIO-COMPOSTO ORGÂNICO
The liner is one of the most important elements in a sanitary landfill project, since it works as a barrier capable to impede seepage of pollutant substances through the subsurface. This element is usually built with materials that have low permeability. The choice of the right material as well as the control and supervision of the constructive processes are
Publicado em: 2007
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24. 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