Soil Pipe Interaction
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Pipeline Stress Analysis Through Stress Function Fittings
Abstract This work presents a hybrid experimental technique for stress analysis in pipes due to soil-pipe interaction. It was used a variation of Digital Speckle Pattern Interferometry (DSPI) combined with a small indentation setup for acquiring radial displacement points. Data collected are fitted under the Airy stress functions method for the determination
Lat. Am. j. solids struct.. Publicado em: 17/09/2018
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2. Jet Grouting (sistema monofluido): um método teórico simplificado para a previsão do diâmetro das colunas. / Jet Grouting (single fluid system): a theoretical simplificated method for the prediction of column diameter.
Jet grouting is one of the most popular ground improvement techniques all over the world. The method is based on high-speed grouting of water-cement mixtures and/or other fluids (air, water) into the subsoil. The fluids are injected through small diameter nozzles placed on a grout pipe, which is continuously rotated at a constant rate and slowly raised towar
Publicado em: 2009
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3. DYNAMIC BEHAVIOR OF BURIED PIPES: METHODOLOGY AND COMPUTATIONAL IMPLEMENTATION / COMPORTAMENTO DINÂMICO DE DUTOS ENTERRADOS: METODOLOGIA E IMPLEMENTAÇÃO COMPUTACIONAL
This work presents a numerical methodology for the analysis of buried pipes employed by the transport of oil and gas subject to dynamic loads. Emphasis is given to seismic loads. A finite element model based on a special class of beam element for the pipe representation is employed. Both geometric and material nonlinearities are considered in a total Lagrang
Publicado em: 2008
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4. ESTABILIDADE DE DUTOS ENTERRADOS SUJEITOS A CARGAS TÉRMICAS / STABILITY OF BURIED PIPES UNDER THERMAL LOADS
Neste trabalho é realizado um estudo da estabilidade de dutos enterrados submetidos a cargas térmicas. As cargas térmicas são devidas ao aquecimento do fluido com o objetivo de facilitar o transporte dos óleos que são escoados nos dutos. O duto expande devido a estas cargas térmicas. Como o duto está restringido em suas extremidades e devido à expan
Publicado em: 2007
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5. Buckling analysis of high-temperature pressurized pipelines with soil-structure interaction
High-temperature pressurized pipelines design requires special attention, as restrained thermal stresses are high. Due consideration should be given to thermal expansion, as stresses in bends of expansion loops are significant. Also, the modelling of the soil-pipe interaction using soil characteristics, especially friction and lateral resistance, is importan
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2003-04
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6. A NUMERICAL MODEL FOR THE ANALYSIS OF BURRIED PIPES / MODELO NUMÉRICO PARA O ESTUDO DO COMPORTAMENTO DE DUTOS ENTERRADOS
This work presents a numerical methodology for the analysis of buried pipes employed by the transport of oil and gas. Both geometric and material nonlinearities are considered in a total Lagrangean formulation. A special type of beam element is employed in the finite element discretization. The equilibrium equations are formulated based on the virtual work p
Publicado em: 2003
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7. A NUMERICAL AND EXPERIMENTAL STUDY TO EVALUATE PIPE-SOIL INTERACTION / UM ESTUDO NUMÉRICO E EXPERIMENTAL PARA A AVALIAÇÃO DA INTERAÇÃO SOLO - DUTO
The necessity for offshore oil exploration to reach greater depths, pushed the demands for semi-submersible exploration and production units. Presently, steel catenary risers (SCR) appear to be the best recommended technical solution for oil and gas exploration.Concerning to the fatigue analysis there are two critical stress points to be considered: close to
Publicado em: 2001