The Uplift Behavior of Large Underground Structures in Liquefied Field

Abstract:

Soil liquefaction due to the earthquake causes serious damages and engineering problems, such as the reduction of the soil strength, large settlement of the ground surface, the flow of liquefied soil and the uplift behavior to the underground structures, and the large deformation induced by the uplift force threatens the stability and safety of the structures. In this paper, a FE-FD coupled method is used in the simulation, the cyclic elasto-plastic constitutive model and the updated lagrangian formulation are applied to deal with the material and geometrical nonlinearity of liquefied soil. The results show that after the earthquake, the exceed pore water pressure will still exist for some time and the structure has an obvious vertical uplift displacement related to the liquefied area and the flow of liquefied soil. The uplift displacement will decrease as the thickness of the upper liquefiable soil layer is reduced. The results can be regarded as a guidance and reference for the design of the large underground structures.

• Periodical: Applied Mechanics and Materials (Volumes 90-93)
• Pages: 2112-2118
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.90-93.2112
• Online since: September 2011
• Authors: Xi Wen Zhang, Xiao Wei Tang, Qi Shao, Xu Bai
• Keywords: Earthquake, Liquefaction, Soil Nail, Soil-Structure Interaction (SSI), Uplift

References

[1] M. Hamada, Large Ground Deformations and Their Effects on Lifelines: 1964 Niigata Earthquake, Case Studies of Liquefaction and Lifeline Performance During Past Earthquakes, Vol. 1, Japanese Case Studies, Technical Report NCEER-92-0001, PP3-1-3-123.

[2] M. Hamada, R. Isoyama, K. Wakamatsu: submitted to Journal of Soils and Foundations (1996)

[3] H.B. Seed, F.I. Makdisi, I.M. Idriss, et al: submitted to Journal of Geotechnical and Geoenvironmental Engineering (1975)

[4] Guoxing Chen: submitted to Journal of Earthquake Engineering and Engineering Vibration (2007)

[5] Degao Zou, Xianjing Kong, Ling H.I. et al: submitted to Journal of Geotechnical Engineering (2002) in Chinese

[6] T.Tobita,G.-C.Kan&.Iai: submitted to Journal of Physical Modelling in Geotechnics (2010)

[7] Huabei Liu, Erxiang Song: submitted to Journal of Computers and Geotechnics (2005)

[8] F. Oka, A. Yashima, T. Shibata, et al: submitted to Journal of Applied Scientific Research (1994)

[9] K. Akai, T. Tamura: submitted to Journal of Proceedings of the Society of Civil Engineers (1978)

[10] R.E. Goodman, R.L. Taylor, T.L. Brekke: submitted to Journal of Soil Mechanics & Foundations (1968)