Centrifuge Modeling on Seismic Behavior of Pile in Liquefiable Soil Ground

Abstract:

Dramatic failure of pile foundations caused by the soil liquefaction was founded leading to many studies for investigating the seismic behavior of pile. The failures were often accompanied with settlement, lateral displacement and tilting of superstructures. Therefore soil-structure interaction effects must be properly considered in the pile design. Two tests by using the centrifuge shaking table were conducted at an acceleration field of 80 g to investigate the seismic response of piles attached with different tip mass and embedded in liquefied or non-liquefied deposits during shaking. It was found that the maximum bending moment of pile occurs at the depth of 4 m and 5 m for dry sand and saturated sand models, respectively. The more tip mass leads to the more lateral displacement of pile head and the more residual bending moment.

• Periodical: Applied Mechanics and Materials (Volumes 479-480)
• Pages: 1139-1143
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.479-480.1139
• Online since: December 2013
• Authors: Wen Yi Hung, Chung Jung Lee, Wen Ya Chung, Chen Hui Tsai, Ting Chen, Chin Cheng Huang, Yuan Chieh Wu
• Keywords: Centrifuge Shaking Table Test, Liquefaction, Pile Bending Moment, Pile Foundation

References

[1] T. Abdoun, and R. Dobry. Evaluation of pile foundation response to lateral spreading, Soil Dynamics and Earthquake Engineering, Vol. 22, pp.1051-1058(2002).

DOI: 10.1016/s0267-7261(02)00130-6

[2] Bhattacharya S. Pile Instability during earthquake liquefaction, Ph. D Dissertation, University of Cambridge, Cambridge, UK. (2003).

[3] S.J. Brandenbergy, R.W. Boulanger, and B.L. Kutter. Static Pushover Analyses of Pile Groups in Liquefied and Laterally Spreading Ground in Centrifuge Tests, Geotechnical and geoenvironmental Engineering, Vol. 133(9), pp.1055-1066 (2007).

DOI: 10.1061/(asce)1090-0241(2007)133:9(1055)

[4] Ishihara, K. Terzaghi oration: Geotechnical Aspects of the 1995 Kobe Earthquake, Proceedings of 14th International Conference on Soil Mechanics and Foundation Engineering, Hamburg, Germany, p.2047–2073(1997).

[5] Tokimatsu K., and Asaka Y. Effects of Liquefaction-Induced Ground Displacement on Pile Performance in the 1995 Hyogoken-Nambu Earthquake, Soils and Foundations, Special Issue 2, pp.163-177(1998).

DOI: 10.3208/sandf.38.special_163

[6] Lee, C.J., Wei, Y.C., and Kuo, Y.C. Boundary effects of a laminar container in centrifuge shaking table tests, Soil Dynamics and Earthquake Engineering, Vol. 34(1), 37-51(2012).

DOI: 10.1016/j.soildyn.2011.10.011