SYMPOSIA PAPER Published: 01 January 1994

Cyclic Undrained Triaxial Behavior of Sand by a Cooperative Test Program in Japan


The results of a round-robin cyclic undrained triaxial test program using Toyoura Sand are reported. Toyoura Sand, which is a poorly-graded fine sand consisting of subangular to angular quartz-rich particles, has been widely used in Japan for the study on sand liquefaction. The cooperative tests were carried out by thirty seven laboratories in Japan following the specified test procedures. The test results showed that the cyclic triaxial strength increases noticeably with the decrease in the specimen diameter probably due to the increase in membrane penetration effects. The cyclic deformation and strength characteristics were also strongly influenced by deviation from the uniformity and symmetry of cyclic deviator stresses. It was found that pertinent specifications of test procedures are essential to reduce effectively unaccountable scattering in cyclic undrained test data to a small value.

Author Information

Miura, S
Muroran Institute of Technology, Muroran, Japan
Toki, S
Hokkaido University, Sapporo, Japan
Tatsuoka, F
Institute of Industrial Science, University of Tokyo, Minato-ku, Japan
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Developed by Committee: D18
Pages: 246–260
DOI: 10.1520/STP13217S
ISBN-EB: 978-0-8031-5272-4
ISBN-13: 978-0-8031-1877-5