ISSN: 0149-6115
Published Online: 17 November 2003
Page Count: 8

Shake Table Calibration and Specimen Preparation for Liquefaction Studies in the Centrifuge

Dief, HM
Assistant Professor,Zagazig University,

Figueroa, JL
Professor,Case Western Reserve University,OH,

(Received 15 February 2000; accepted 23 October 2002)

Abstract

Recently, a new geotechnical centrifuge was installed at Case Western Reserve University (CWRU). To use this facility in studying soil liquefaction required the development of a feedback correction procedure for the shake table input signals and an appropriate procedure for model preparation, as well as the design of a saturation system setup. These procedures are discussed in detail. Dynamic centrifuge tests at a scale of 60 g's were conducted on scaled pore fluid-saturated models. This fluid is a solution of a water-soluble polymer derived from cellulose at 60 times the viscosity of water. A comparison between the behavior of pore pressure responses during two identical dynamic centrifuge tests using either water or a scaled viscous fluid is documented in this paper.

Keywords:
centrifuge modeling, dynamic testing, pore fluid, shake table calibration, signal feedback correction, soil model preparation, liquefaction

Paper ID: GTJ11261J
DOI: 10.1520/GTJ11261J
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