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Centrifuge liquefaction tests in a laminar box

Hushmand, B. and Scott, R. F. and Crouse, C. B. (1988) Centrifuge liquefaction tests in a laminar box. Géotechnique, 38 (2). pp. 253-262. ISSN 0016-8505.

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The difficulties associated with instrumenting earthquake sites in order to record pore pressure changes in a future event led to the use of scaled model tests performed in a centrifuge. Both dry and saturated sands were employed, contained in a box constructed of aluminium laminae designed to move freely on each other. This would result in shearing distortions developing in the soil unimpeded by the container. Accelerometers, displacement transducers and pore pressure sensors were attached to the box and embedded in the soil at various elevations so as to record the response of the soil to an earthquake-like excitation supplied to the base of the container. A special apparatus was constructed to imitate earthquake motion. In some tests on saturated sand, the soil profile was liquefied. Test results of accelerations, lateral and vertical displacements and pore pressures against time for typical earthquake inputs are given. The data, obtained under controlled conditions, can be compared with the various calculation methods for dynamically generated pore pressures.

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Additional Information:© 1988 Thomas Telford Ltd. This study was supported by the US Geological Survey under Grant No. 14-08-0001-G 1192. The laminar box was built by J. R. Lee, who also assisted in its design.
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Subject Keywords:centrifuge modelling; earthquakes; granular materials, liquefaction; pore pressures; site response
Issue or Number:2
Record Number:CaltechAUTHORS:20141031-084900194
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51103
Deposited By: Tony Diaz
Deposited On:31 Oct 2014 16:02
Last Modified:03 Oct 2019 07:29

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