Abstract
During the 2011 Tohoku Pacific Ocean earthquake (M9.0), liquefaction occurred extensively in reclaimed land in Kanto area more than 200km far from the earthquake fault. The liquefied sand generally contained a lot of non-plastic fines with fines content more than 50% in some places. Almost all sand deposits along the Tokyo bay area reclaimed in 1960s or later liquefied, while in a good contrast, those older than that did not.
In order to study the aging effect on liquefaction strength of sands containing fines, a series of basic laboratory tests combining innovative miniature cone penetration and subsequent cyclic undrained loading were carried out in a modified triaxial apparatus on sand specimens containing fines. A unique curve relating cone resistance q t and liquefaction strength R L was obtained for reconstituted specimens, despite the differences in relative density D r and fines content F c , quite contradictory to the current liquefaction potential evaluation practice. Then a small amount of cement was added to fines in the sand specimens to simulate a geological aging effect in a short time. It was found that the liquefaction strength R L increases with increasing F c more than the penetration resistance q t , resulting in higher liquefaction strength under the same cone resistance. Thus it has been clarified that not the fines content itself but the aging effect by cementation, which becomes more pronounced in sands with higher F c , can facilitate reasonable basis why liquefaction strength is modified with increasing fines content in the evaluation practice.
In addition to the accelerated tests on the reconstituted specimens with cement, intact samples recovered from in situ Pleistocene and Holocene deposits with known ages have been tested and confirmed the similar trend to the above-mentioned results.
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References
Inada T (1960) On the use of Swedish weight sounding test results, Tsuchi-to-Kiso. Jpn Geotechnol Soc 8(1):13–18 (in Japanese)
Kokusho T (2007) Liquefaction strengths of poorly-graded and well-graded granular soils investigated by lab tests. In: Proceedings of the 4th international conference on earthquake geotechnical engineering, Thessaloniki. Springer, pp 159–184
Kokusho T, Murahata K, Hushikida T, Ito N (2003) Introduction of miniature cone in triaxial apparatus and correlation with liquefaction strength. In: Proceedings of the annual convention of JSCE, III-96, pp 191–192 (in Japanese)
Kokusho T, Hara T, Murahata K (2005) Liquefaction strength of fines-containing sands compared with cone-penetration resistance in triaxial specimens. In: Proceedings of the 2nd Japan-US workshop on geomechanics. ASCE Geo-Institute publication no 156, Tokyo, pp 356–373
Kokusho T, Ito F, Nagao Y (2009) Effects of fines and aging on liquefaction strength and cone resistance of sand investigated in triaxial apparatus. In: Proceedings of the earthquake geotechnical engineering satellite conference, 17th ICSMGE, Alexandria, Paper no I.16, CD-publication
Mitani Y (2006) Earthquake-induced liquefaction and fluidization in middle Pleistocene in the northern area of Chiba Prefecture, Japan. Earth Sci (Chikyu Kagaku) 60:241–252 (in Japanese)
Papadopoulou A, Tika T (2008) The effect of fines on critical state and liquefaction resistance characteristics of non-plastic silty sands. Soil Found 48(5):713–725
Seed HB, De Alba P (1984) Use of SPT and CPT tests for evaluating the liquefaction resistance of sands. In: Proceedings of the in-situ’86, ASCE geotechnical special publication no 156, pp 356–373
Shishikura M, Kamataki T, Takada K, Suzuki K, Okamura Y (2005) Survey report of emerged beach ridges in the southwestern part of Boso Peninsula -timing of the Taisho-type Kanto earthquake. Active Fault & Paleo-earthquake research, No. 5, pp 41–68 (in Japanese)
Suzuki Y, Tokimatsu K, Taya Y, Kubota Y (1995) Correlation between CPT data and dynamic properties of in situ frozen samples. In: Proceedings of the 3rd international conference on recent advances in geotechnical earthquake engineering and soil dynamics, St. Louis, vol 1, pp 249–252
Tokimatsu K, Yoshimi Y (1983) Empirical correlation of soil liquefaction based on SPT N-value and fines content. Soil Found 23(4):57–74
Acknowledgments
Geologists, Y. Mitani, S. Ishiwata and K. Momikura, experts in Pleistocene geology in Japan, who provided us with publications on local geology and guided us to outcrops of known ages for block sampling are gratefully acknowledged. Mr. Makoto Kamimura of Something Co. Ltd, in Japan, who provided the soil investigation data in Fig. 3.3 is gratefully appreciated.
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Kokusho, T., Nagao, Y., Ito, F., Fukuyama, T. (2014). Sand Liquefaction Observed During Recent Earthquake and Basic Laboratory Studies on Aging Effect. In: Maugeri, M., Soccodato, C. (eds) Earthquake Geotechnical Engineering Design. Geotechnical, Geological and Earthquake Engineering, vol 28. Springer, Cham. https://doi.org/10.1007/978-3-319-03182-8_3
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DOI: https://doi.org/10.1007/978-3-319-03182-8_3
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