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Centrifuges in modelling: principles and scale effects
2010Centrifuge model testing represents a major tool available to the geotechnical engineer since it enables the study and analysis of design problems by using geotechnical materials. A centrifuge is essentially a sophisticated load frame on which soil samples can be tested.
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Modeling liquefaction in centrifuges
2018In the past twenty years or so, numerous investigations on the centrifuge have been carried out to reproduce seismically induced liquefaction phenomena and to study their effects on the stability of such earth structures as homogeneous or stratified level ground, slopes, embankments, water front structures, sheet pile walls, buried structures, etc.
Hon-Yim Ko, Mandar M. Dewoolkar
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Separation in a centrifuge-model
Applied Scientific Research, 1961The gas centrifuges which were used for isotope separation 1,2) have cylindrical rotors. In consequence of the equality of the relaxation times for diffusion and gas motion, and taking into account the pressure-dependence of the diffusion constant, the time-dependent equation for a cylindrical centrifuge is rather complicated 3).
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Centrifuge modelling of laccolith intrusion
Journal of Structural Geology, 1987Abstract Laccolith intrusion has been investigated by centrifuge modelling. Silicone putty, representing magma with Bingham rheology, is intruded by overburden pressure through a circular conduit into a stack of paraffin wax layers, which represent sedimentary strata.
John M. Dixon, David G. Simpson
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Modeling Solute Transport by Centrifugation
Journal of Environmental Engineering, 1989Measurements of physical and chemical solute transport properties of soil/waste systems are necessary to predict pollutant migration in soils. The sorption distribution coefficient is most often determined in the laboratory by performing column studies or batch equilibrium tests. Both of these methods suffer from disadvantages.
Jay A. Celorie +3 more
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Centrifuge Modeling of Buried Pipelines
Advancing Mitigation Technologies and Disaster Response for Lifeline Systems, 2003Fault crossing, lateral spreads and other types of permanent ground deformation (PGD) are arguably the most severe seismic hazards for continuous buried pipelines. Current analysis and design procedures, to a great extent, are based upon Finite Element (FE) modeling.
Michael O'Rourke +2 more
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Centrifuge modelling of raked piles
Bulletin of Earthquake Engineering, 2008Inclined piles are prohibited by many codes in seismic areas. Nevertheless the battered effect has not yet been clarified because very few data are available. The present work is a comparison, at reduced scale in the centrifuge, of the response of two simplified pile groups: a 1 × 2 vertical piles and 1 × 2 pile group with one inclined pile.
Escoffier, Sandra +2 more
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Centrifugal modelling of rockfall events
International Journal of Physical Modelling in Geotechnics, 2009Rockfall, and its subsequent motion down the slope, often poses a serious hazard for people and infrastructure. This paper describes the development of a rockfall generation system used to investigate the rockfall behaviour and dynamic process of the overall trajectory in centrifuge model tests.
K.Itoh, Y.Toyosawa, O.Kusakabe
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Sectional Modeling of a Centrifugal Compressor
4th International Pipeline Conference, Parts A and B, 2002The prediction of compressor performance using steady-state methods has had limited success for multistage configurations. Accepted limitations of the computational methods such as streamline curvature effects have been ignored because of a more dominant issue of the interface between the rotating and stationary components and the change in pitch ...
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Centrifuge modelling of landslides and landslide hazard mitigation: A review
Geoscience Frontiers, 2023Kun Fang, Huiming Tang, Changdong Li
exaly