ISSN: 1945-7545
CODEN: GTJODJ
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, Zagazig,

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