Geotechnical Evaluation
Mostrando 13-21 de 21 artigos, teses e dissertações.
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13. 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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14. EVALUATION OF HYDRAULIC PROPERTIES OF UNSATURATED TROPICAL SOILS / AVALIAÇÃO DE PROPRIEDADES HIDRÁULICAS DE SOLOS TROPICAIS NÃO SATURADOS
The present research work had two main objectives. The first was to obtain a geotechnical index for measuring the weathering degree of gneissic residual soils. For that it were analyzed data corresponding to typical weathering profiles found in the municipality of Rio de Janeiro and executed a complete characterization of a specific weathering profile of fac
Publicado em: 2008
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15. Effects of the process of hidraulic disposal on the behavior of a residue of mining of gold / Efeitos do processo de deposição hidráulica no comportamento de um rejeito de mineração de ouro
The disposal of mineral residues by the technique of hydraulic embankment, in general is characterized for presenting a low geotechnical control. Then, because of presenting deficiencies in the specifications techniques during the disposal process, these deposits can present a high risk of rupture. Thus, to get a safe structure and trustworthy it is importan
Publicado em: 2007
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16. Alternativa de melhoramento de solos tropicais para uso em sistemas basais de selagem, através da aplicação de bentonita
Among all the constructive elements in waste containment systems (e.g. sanitary and industrial landfills and waste ponds), liners and cover systems have been seen as the greatest concern. In Brazil, the use of compacted lateritic soil for this purpose is widely accepted, due to the great occurrence of this type of soil. At the same time, the proposal of usin
Publicado em: 2006
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17. Seleção de locais para barragens de rejeitos usando o método de análise hierárquica. / Solid wastes and water tailing dams site selection using the hierarchy analysis process.
Tailings dams are structures designed to retain solid wastes and water generated in the processing of metal ore. The overall planning of these dams starts with site selection, step in which all directly or indirectly influential variables should be considered: geological, hydrological, topographic, geotechnical, environmental and social characteristics, risk
Publicado em: 2006
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18. AVALIAÇÃO DA INFLUÊNCIA DA MINERALOGIA, ÍNDICE DE VAZIOS E TEOR DE UMIDADE EM PROPRIEDADES TÉRMICAS DE SOLOS / EVALUATION OF EFFECTS OF MINERALOGY, VOIDS RATIO AND MOISTURE CONTENT ON THERMAL PROPERTIES OF SOILS
O conhecimento das propriedades térmicas dos solos é de grande importância em muitos projetos de engenharia e outras situações onde ocorre a transferência de calor nos solos, como em projetos de rodovias, de tubulações para petróleo, água, gás, cabos elétricos enterrados, aplicação de técnicas para remedição de solos contaminados, entre outr
Publicado em: 2006
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19. ANALYSIS OF GEOGRID REINFORCED SOIL TESTS / ANÁLISE NUMÉRICA DE ENSAIOS EM SOLO REFORÇADO COM GEOGRELHA
The use of geosynthetic materials as reinforcement in geotechnical engineering works is significantly increasing over the past decades. Geogrid, whose primary functions is reinforcing the soil mass, is one of the geosynthetics that has been used. In a reinforced soil structure, there are different types of interaction between soil and geogrid. To be possible
Publicado em: 2006
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20. COMPORTAMENTO GEOTÉCNICO DA BARRAGEM DE CURUÁ-UNA, PARÁ / GEOTECHNICAL BEHAVIOR OF CURUÁ-UNA DAM, PARÁ.
The geotechnical behavior of Curuá-Una dam, Pará, was studied due its importance to the North Region of Brazil. The power plant, in operation since 1977, is located in the Amazon forest, next to the city of Santarém. The study was comprised of the evaluation of current operation conditions of the dam and prediction of its performance after a possible rise
Publicado em: 2003
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21. AVALIAÇÃO DO COMPORTAMENTO GEOMECÂNICO E DE ALTERABILIDADE DE ENROCAMENTOS / EVALUATION OF THE GEOMECHANICAL BEHAVIOR AND THE ALTERABILITY OF ROCKFILLS
This work presents an experimental study of the behavior of rockfills, focusing on the changes caused by rock alteration on the physical and mechanical characteristics, such as, lithology, gradation, deformability and strength. The basalt rockfill used in the construction of Marimbondo dam has been considered, with about 25 years of in situ alteration, toget
Publicado em: 2001