TECHNICAL NOTES
Jan 16, 2004

New Compression Index Equation

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Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 130, Issue 2

Abstract

The compression index, Cc (Cc in the case of remolded clay), which is obtained from the e-logp (e: void ratio, p: consolidation pressure) curve of the consolidation test, is used to calculate the consolidation settlement. The initial porosity, n0, was introduced as a factor which is satisfied with the condition and the type of soil, and the relationship between Cc/n0 and Cc was expressed with a good correlation for several remolded clays having a wide range of plasticity. Moreover, it was found that the relationship between Cc/n0 and Cc for undisturbed Ariake clay was also expressed with a good correlation independent of sensitivity ratio, St.

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References

Bowles, J. E. (1984). Physical and geotechnical properties of soils, 2nd Ed., McGraw–Hill, New York, 29–30.
Burland, J. B.(1990). “30th Rankine lecture: On the compressibility and shear strength of natural clays.” Geotechnique, 40(3), 329–378.
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Koumoto, T., and Park, J. H.(1998a). “Compression index equation for remolded clays.” Trans. Japanese Soc. Irrigation Drainage Reclamation Eng., 193, 81–85.
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Park, J. H., and Koumoto, T.(2000). “Compression characteristics of remolded clays.” Trans. Japanese Soc. Irrigation Drainage Reclamation Eng., 205, 13–17.
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Go to Journal of Geotechnical and Geoenvironmental Engineering
Journal of Geotechnical and Geoenvironmental Engineering
Volume 130Issue 2February 2004
Pages: 223 - 226

History

Received: Aug 24, 2001
Accepted: Jun 2, 2003
Published online: Jan 16, 2004
Published in print: Feb 2004

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Authors

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J. H. Park
Special Researcher, Agricultural Dept., Saga Univ., 1 Honjo-machi, Saga 840-8502, Japan.
T. Koumoto
Professor, Agriculture Dept., Saga Univ., 1 Honjo-machi, Saga 840-8502, Japan.

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