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Performance-Based Seismic Assessment of Slope Systems Read chapter Read first chapter

2022 | OriginalPaper | Chapter

Influence of Lateral Stress Ratio on N-value and Cyclic Strength of Sands Containing Fines

Authors : Kenji Harada, Kenji Ishihara, Hiroshi Yabe

Published in: Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022)

Publisher: Springer International Publishing

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Abstract

The compaction method, such as the sand compaction pile (SCP) method, is a method to increase the strength of the ground by installing the material into the ground to be improved. However, in the standard penetration test (SPT) and cone penetration test (CPT) of the in-situ sounding test to confirm the improvement effect, the effect of density increase has been sufficiently evaluated, but the effect of lateral stress has not been evaluated. The authors investigated the effect of the lateral stress ratio, Kc-value and presented a relationship between the normalized N-value, N1 of the standard penetration test and cyclic strength based on the results of soil chamber tests and hollow torsional shear tests under anisotropic condition of clean sand. This relationship was analyzed using the same method that led to this relationship against sands containing fines. As a result, a design chart of the ground (recommended chart), which is the relationship between the two considering the fine content, was presented.

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previous chapter Assessment of Stone Column Technique as a Mitigation Method Against Liquefaction-Induced Lateral Spreading Effects on 2 × 2 Pile Groups
next chapter Effect of Water Flow Rate and Insertion Velocity on Soil Disturbance Due to Insertion of Small-Scale Self-boring Tube
Literature
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2.
Ishihara, K., Harada, K., Lee, W.F., Chan, C.C., Safiullah, A.M.M.: Post-liquefaction settlement analyses based on the volume change characteristics of undisturbed and reconstituted samples. Soils Found. 56(3), 545–558 (2016)CrossRef
3.
Harada, K., Yasuda, S., Niwa, T., Shinkawa, N., Ideno, T.: Evaluation of improved ground by compaction containing fines. JSCE J. Earthq. Eng. 27 (2003). (in Japanese)
4.
Cubrinovski, M., Ishihara, K.: Empirical correlation between SPT N-value and relative density for sandy soils. Soils Found. 39(5), 61–71 (1999)CrossRef
5.
Harada, K., Ishihara, K.: Study on minimum void ratio and relative density of soils containing fines. In: Annual Meeting of JEE, pp. 276–277 (2012). (in Japanese)
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Harada, K., Ishihara, K.: Relation between penetration resistance and relative density of soils containing fines. In: The 67th Annual Meeting of JSCE, pp. 411–412 (2012). (in Japanese)
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Japan Road Association: ((a): 1996, (b): 2017) Specifications for Highway Bridges, Part V, Seismic Design. (in Japanese)
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Ishihara, K., Iwamoto, S., Yasuda, S., Takatsu, H.: Liquefaction of anisotropically consolidated sand. In: Proceedings of the 9th International Conference on SMFE, pp. 11–15 (1977)
Metadata
Title
Influence of Lateral Stress Ratio on N-value and Cyclic Strength of Sands Containing Fines
Authors
Kenji Harada
Kenji Ishihara
Hiroshi Yabe
Copyright Year
2022
Book
Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022)

Print ISBN: 978-3-031-11897-5

Electronic ISBN: 978-3-031-11898-2

Copyright Year: 2022

DOI
https://doi.org/10.1007/978-3-031-11898-2_135