Earth Dam
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Detection of seepage paths in small earth dams using the self-potential method (SP)
Abstract The application of geoelectric methods, such as induced polarization (IP), the electrical resistivity and the self-potential (SP), presents an important indirect study methodology in several areas of geology, such as mining, geotechnics and environmental geology. The present study deals with the results of the application of the self-potential metho
REM, Int. Eng. J.. Publicado em: 2020-09
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2. Geophysical investigation of earth dam using the electrical tomography resistivity technique
Abstract Dams are structures that dam rivers and streams for a variety of purposes. These structures often need to be sturdy to withstand the force of the impoundment and the high values of accumulated water load. The constant maintenance of these structures is essential, since a possible accident can lead to damage of catastrophic proportions. This research
REM, Int. Eng. J.. Publicado em: 2017-03
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3. 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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4. A QUALIDADE DA ÁGUA DOS AÇUDES DE CARIRA E DO BURI / CHARACTERIZATION OF WATER QUALITY IN BURI RESERVOIR FREI PAULO/SE
One of the most important natural resources in the Earth is, without a doubt none, the water. Had to constant periods of drought that characterize the semibarrens climate of wasteland in Brazilian northeastern, people faces serious problems of water scarcity and consequent lack of food. To try to minimize the lack of water, some reservoirs were built in nort
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/12/2009
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5. MODELAGEM NUMÉRICA DE FLUXO 3D EM MEIOS POROSOS / NUMERICAL MODELING OF 3D FLOW IN POROUS MEDIA
Numerical simulations tend to simplify the behavior of real problems, mainly through the choice of 2D models to describe the hydromechanical responses of earth dams, excavations, foundations, etc., partly because it is easier to construct geometrical meshes, it is simpler to impose the required boundary conditions, the computer calculations are done more rap
Publicado em: 2006
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6. Urban expansion and geomorfological expansion in backwater of reservatories: comparative analisis of two drainage basins that are in the source of Guarapiranga, São Paulo / Expansão urbana e evolução geomorfológica em remansos de reservatórios: análise comparativa de duas bacias hidrográficas em guarapiranga, São Paulo
The environmental problems created by the accelerated urban growth in the last fifty years have brought severe consequences to the group of people living in big urban centers. For this reason many scientists, mainly in the field of Earth sciences, have searched the development of new techniques, methodologies and parameters to measure, recognize and attenuat
Publicado em: 2006
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7. OCUPAÇÃO ANTRÓPICA E SÓCIO-AMBIENTAL NA ÁREA DE CAPTAÇÃO DO RESERVATÓRIO DO DNOS SANTA MARIA- RS. / ANTHROPIC AND PARTNER-ENVIRONMENTAL CAPTATION IN AREA OF THE DNOS SANTA MARIA - RS.
A presente pesquisa tem como objetivo realizar um estudo do impacto ambiental provocado pelo avanço antrópica na vegetação nativa, a fim de identificar áreas de preservação permanente (APP) como encostas de morros, matas ciliares e oferecer subsídios para sua preservação. A intervenção do homem cada vez mais intensa no meio ambiente através dos
Publicado em: 2006
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8. ANÁLISE NUMÉRICA DO ALTEAMENTO DE BARRAGENS DE TERRA / NUMERICAL ANALYSIS OF RAISING EARTH DAMS
One of the activities related to dam constructions involves the raising of the existent structure, normally done with the objective of increasing the water storage capacity of the reservoirs, improving the safety factor of the embankment slopes or to ensure a better protection against possible water flooding. The raising of an earth dam can be predicted in t
Publicado em: 2005
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9. Retroanálise probabilista: aplicação prática de análise de percolação em uma barragem de terra. / Probabilistic back-analysis: practical application of seepage analysis in an earth dam.
The engineering project is based upon a model that can predict the behavior of the facility to be constructed. Such model incorporates a series of working hypotheses which may or may not be fully realized during construction or operation. Under such circumstances, probabilistic back-analysis is a powerful tool for continuous evaluation of the working hypothe
Publicado em: 2004
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10. 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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11. MODELAGEM DO COMPORTAMENTO ESTÁTICO E SÍSMICO DA BARRAGEM DE TERRA DE POMACOCHA - PERU / NUMERICAL ANALYSIS OF THE STATIC AND SEISMIC BEHAVIOR OF POMACOCHA DAM - PERU
Construção de barragens de terra é uma atividade milenar, empregada com o objetivo de atender às mais diversas necessidades humanas como o armazenamento de água, irrigação, regularização de cursos d`água, geração de enregia elétrica, etc. Ao longo da história, o projeto destas obras de terra passou de conceito simples, baseados em técnicas emp
Publicado em: 2003
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12. ANALYSIS OF FLOW REGIME IN CURUÁ-UNA DAM, PARÁ. / ANÁLISE DAS CONDIÇÕES DE FLUXO NA BARRAGEM DE CURUÁ-UNA, PARÁ
A análise das condições de fluxo na barragem de Curuá-Una (Pará) tem como objetivo avaliar a viabilidade geotécnica quanto à elevação do nível de operação do reservatório. A Usina de Curuá-Una (operada pela REDE Celpa) é responsável pelo abastecimento elétrico de Santarém. No entanto, nos horários de grande consumo, a produção de energia
Publicado em: 2003