Results 261 to 270 of about 48,590 (308)

Modeling liquefaction in centrifuges

2018
In 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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Modeling Solute Transport by Centrifugation

Journal of Environmental Engineering, 1989
Measurements 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, Ted S. Vinson, Sandra L. Woods, Jonathan D. Istok   +3 more
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Centrifugal modelling of rockfall events

International Journal of Physical Modelling in Geotechnics, 2009
Rockfall, 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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Centrifuge modelling of laccolith intrusion

Journal of Structural Geology, 1987
Abstract 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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Centrifuges in modelling: principles and scale effects

2010
Centrifuge 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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Centrifuge modelling of unsaturated soils

Journal of Geo-Engineering Sciences, 2014
The use of centrifuge modeling where unsaturated soils are involved is more limited than its use in problems involving dry sand or saturated clays. This limitation is certainly due to the well-known experimental complexities related with unsaturated soils that increase in centrifuge modeling; on the other hand, few data is available about the scaling ...
Caicedo, Bernardo, Thorel, Luc
openaire   +1 more source

Centrifuge Modeling of Slope Instability

Journal of Geotechnical and Geoenvironmental Engineering, 2009
This paper demonstrates the use of a centrifuge modeling technique in studying slope instability. The slope models were prepared from sand, and sand mixed with 15 and 30% fines by weight, compacted at optimum water content. The validity of the modeling technique was confirmed using slope models of different heights, inclinations, and soil types.
Hoe I. Ling, Min-Hao Wu, Dov Leshchinsky, Ben Leshchinsky   +3 more
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Modelling the Kelsey Centrifugal Jig

Minerals Engineering, 1995
Abstract An empirical model of the Kelsey Centrifugal Jig is presented. The model describes the partition of feed material to the jig concentrate, taking account of the main jig operating parameters: g -force, ragging characteristics and stroke length and of the material properties of the feed.
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Separation in a centrifuge-model

Applied Scientific Research, 1961
The 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 model testing at Caltech

International Journal of Soil Dynamics and Earthquake Engineering, 1983
Abstract In the past eight years a variety of model tests has been performed on the geotechnical centrifuge at Caltech. They include soil mechanics experiments, such as static and dynamic pile and foundation tests, and other investigations of a more geographical nature where ground faulting and earthquake motions have been modeled.
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