Centrifuges in modelling

Taylor, R.N.

doi:10.4324/9780203210536_chapter_2

Cited by 60 publications

(21 citation statements)

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“…Geotechnical centrifuge model testing provides a valuable tool to the geotechnical engineer, enabling the physical study and analysis of design problems by using geotechnical materials (Taylor 1995). Centrifuge modelling has emerged as a valuable research and educational tool for geotechnical and geoenvironmental engineering.…”

Section: Centrifuge Physical Modelling and Geotechnical Engineering Ementioning

confidence: 99%

“…The model is often a reduced scale version of the prototype. The two events should be similar and similarity is achieved by appropriate scaling laws where dimensionless groups are used to relate events of different scales (Taylor 1995). This concept is illustrated in Figure 1 where an actual field condition (prototype) is scaled to a model that is (1/N) the height of the prototype, where N is the intended g-level to Downloaded by [National Pingtung University of Science and Technology] at 20:57 04 January 2015 be achieved in the centrifuge.…”

Section: Centrifuge Physical Modelling and Geotechnical Engineering Ementioning

confidence: 99%

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Integration of centrifuge testing in undergraduate geotechnical engineering education at remote campuses

Shamy

Abdoun

McMartin

et al. 2013

European Journal of Engineering Education

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We report the results of a pilot study aimed at developing, implementing, and assessing an educational module that integrates remote major research instrumentation into undergraduate classes. Specifically, this study employs Internet Web-based technologies to allow for real-time video monitoring and execution of cutting-edge experiments. The students' activities within the module are centred on building a model of a shallow foundation on a sand deposit utilising a centrifuge facility and using this model for: (1) visual observation of the response of soil-foundation systems, (2) learning the use of instrumentation, (3) interpretation of acquired data, and (4) comparing experimental results to theoretical predictions. Testing a soil-foundation system helped the students identify the lab experiments needed to analyse and design the system. A survey was used to gauge students' perceptions of learning as a result of introducing the module, which were found to be positive.

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Section: Centrifuge Physical Modelling and Geotechnical Engineering Ementioning

confidence: 99%

Section: Centrifuge Physical Modelling and Geotechnical Engineering Ementioning

confidence: 99%

Integration of centrifuge testing in undergraduate geotechnical engineering education at remote campuses

Shamy

Abdoun

McMartin

et al. 2013

European Journal of Engineering Education

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“…A dimensional analysis of the governing field equations [Taylor, 1995] was performed to derive the scaling laws associated with the employed high g-level. This high g-level mimics the conditions of centrifuge testing of small-scale models.…”

Section: Computational Detailsmentioning

confidence: 99%

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Shamy¹

2005

J. Earth. Eng.

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A coupled continuum-discrete hydromechanical model was employed to analyse the effects of cementation on the dynamic response of liquefiable deposits of granular soils. The discrete element method was used to idealise the solid phase and parallel bonds were utilised to model the inter-particle cementations. The pore fluid flow was addressed using averaged Navier-Stokes equations. The conducted simulations revealed a number of salient response patterns and mechanisms. Cemented granular soils were found to be generally highly resistant to liquefaction. However, full cementation of a shallow site may lead to a significant amplification of ground accelerations. A base isolation mechanism develops when a site is partially cemented and mitigates ground shaking hazard. The employed modeling approach provides an effective tool to assess the intricate micro-mechanical response mechanisms of saturated cemented soils.

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“…Reduced-scale physical modeling in geotechnical engineering is often conducted within a centrifuge in order to provide correct scaling of the selfweight stresses and it is proven that this technique can provide various advantages in the analysis of geotechnical systems (Schofield 1980, Taylor 1995, Kim et al 2012a.…”

Section: Introductionmentioning

confidence: 99%

An 800 g-tonne geotechnical centrifuge at K-water Institute, Korea

Kim¹,

Park²,

Shin³

et al. 2013

ICPMG2014 – Physical Modelling in Geotechnics

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An 800 g-tonne capacity, 8.0 m platform radius geotechnical centrifuge has been installed at K-water Institute, Daejeon, Korea in 2012 and it is one of the largest in the world. The maximum acceleration of the centrifuge is 150 g, and maximum 8000 kg payload can be loaded in 2.0 m(L) × 2.0 m(W) × 2.0 m(H) large platform to be accelerated up to 100 g. The centrifuge is equipped with fluid rotary joints, a fiber optic rotary joint, electrical slip rings, and on-board data acquisition system. For seismic performance evaluations of large structures, a large scale uniaxial servo hydraulic inflight earthquake simulator has been developed. It has a 1.6 m(L) × 0.8 m(W) experimental platform and can simulate maximum 22 g horizontal base motion in sinusoidal waveform to shake a 1500 kg payload. In this paper, the details of equipment developed for physical modeling research will be introduced and lessons from the installation of the large geotechnical centrifuge will be shared with the research community of physical modeling in geotechnical engineering.

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Centrifuges in modelling

Cited by 60 publications

References 0 publications

Integration of centrifuge testing in undergraduate geotechnical engineering education at remote campuses

Integration of centrifuge testing in undergraduate geotechnical engineering education at remote campuses

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An 800 g-tonne geotechnical centrifuge at K-water Institute, Korea

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