Geomechanics and Engineering

Techno-Press (테크노프레스)
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Evaluation of dynamic earth pressure acting on pile foundation in liquefiable sand deposit by shaking table tests

  • Mintaek Yoo (Departemnt of Civil and Environmental Engineering, Gachon Univeristy) ;
  • Seongwon Hong (Department of Safety Engineering, Korea National University of Transportation)
  • Received : 2023.11.23
  • Accepted : 2024.02.23
  • Published : 2024.09.10
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Abstract

In this study, a series of shaking table model tests were performed to evaluate the dynamic earth pressure acting on pile foundation during liquefaction. The dynamic earth pressure acting on piles were evaluated with depth and pile diameters comparing with excess pore water pressure, it means that the kinematic load effect plays a substantial role in dynamic pile behavior during liquefaction. The dynamic earth pressure acting on pile foundations with mass exhibited significant similarity to those without upper mass. Analyzing the non-fluctuating and fluctuating components of both excess pore water pressure and dynamic earth pressure revealed that the non-fluctuating component has a dominant influence. In case of non-fluctuating component, dynamic earth pressure is larger than excess porewater pressure at same depth, and the difference increased with depth and pile diameter. However, in the case of the fluctuating component, the earth pressure tended to be smaller than the excess pore water pressure as the depth increased. Based on the results of a series of studies, it can be concluded that the dynamic earth pressure acting on the pile foundation during liquefaction is applied up to 1.5 times the excess pore water pressure for the non-fluctuating component and 0.75 times the excess pore water pressure for the fluctuating component.

Keywords

Acknowledgement

This research was supported by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant No. RS-2023-00238458) and the MidCareer Researcher and Young Researcher Program through the National Research Foundation of Korea (NRF) funded by the Korea government (MSIT; Ministry of Science and ICT) (2023R1A2C2006400, 2021R1C1C1010087) and Basic Science Research Program through the NRF funded by the Ministry of Education (2021R1A4A2001964). We greatly appreciate the support.

References

  1. Ebadi-Jamkhaneh, M., Amir, H.E., Kontoni, D.P.N. and Shokri-Amiri, M. (2021), "Numerical FEM assessment of soil-pile system in liquefiable soil under earthquake loading including soil-pile interaction", Geomech. Eng., 27(5), 465-479. https://doi.org/10.12989/gae.2021.27.5.465.
  2. Han, J.T. (2006), "Evaluation of seismic behavior of piles in liquefiable ground by shaking table tests", Ph. D. Dissertation, Seoul National University, Korea.
  3. Ji, Y., Kim, B. and Kim, K. (2021), "Evaluation of liquefaction potentials based on shear wave velocities in Pohang City, South Korea", Int. J. Geo-Eng., 21(1), 1-10. https://doi.org/10.1186/s40703-020-00132-1.
  4. Kim, S.R. (2003), "Evaluation of seismic behavior of gravity type quay wall by shaking table tests", Ph.D. Dissertation, Seoul National University, Korea.
  5. Kwon, S.Y., Yoo, M. and Hong, S.(2020), "Earthquake risk assessment of underground railway station by fragility analysis based on numerical simulation", Geomech. Eng., 21(2), 143-152. https://doi.org/10.12989/gae.2020.21.2.143.
  6. Nasiri, F., Javdanian, H. and Heidari, A. (2020), "Seismic response analysis of embankment dams under decomposed earthquakes", Geomech. Eng., 21(1), 35-51. https://doi.org/10.12989/gae.2020.21.2.035.
  7. Nguyen, A.D., Nguyen, V.T. and Kim, Y.S. (2023), "Finite element analysis on dynamic behavior of sheet pile quay wall dredged and improved seaside subsoil using cement deep mixing", Int. J. Geo-Eng., 23(1), 1-18. https://doi.org/10.1186/s40703-023-00186-x.
  8. Okamura, M., Ishihara, M. and Tamura, K. (2006), "Liquefied soil pressures on vertical walls with adjacent embankments", Soil Dyn. Earthq. Eng., 26(2-4), 265-274. https://doi.org/10.1016/j.soildyn.2005.02.017.
  9. Seyrek, E. and Topcu, S. (2022), "Prediction of earthquake-induced crest settlement of embankment dams using gene expression programming", Geomech. Eng., 31(6), 637-651. https://doi.org/10.12989/gae.2022.31.6.637.
  10. Shamsi, M., Moshtagh, E. and Vakili, A.H. (2023), "Analytical model of isolated bridges considering soil-pile-structure interaction for moderate earthquakes", Geomech. Eng., 34(5), 529-545. https://doi.org/10.12989/gae.2023.34.5.529.
  11. Tamari, Y. and Towhata, I. (2003), "Seismic soil-structure interaction of cross sections of flexible underground structures subjected to soil liquefaction", Soils Found., 43(2), 69-87. https://doi.org/10.3208/sandf.43.2_69.
  12. Tokimatsu, K., Suzuki, H. and Sato, M. (2005), "Effects of inertial and kinematic interaction on seismic behavior of pile with embedded foundation", Soil. Dyn. Earthq. Eng., 25(7-10), 753-762. https://doi.org/10.1016/j.soildyn.2004.11.018.
  13. Yang, S., Kwak, D. and Kishida, T. (2020), "Development of seismic fragility curves for high-speed railway system using earthquake case histories", Geomech. Eng., 21(2), 179-186. https://doi.org/10.12989/gae.2020.21.2.179.
  14. Yigit, A. (2022), "Response of segmented pipelines subject to earthquake effects", Geomech. Eng., 30(4), 353-362. https://doi.org/10.12989/gae.2022.30.4.353.
  15. Yoo, M., Kwon, S.Y. and Hong, S. (2022), "Dynamic response evaluation of deep underground structures based on numerical simulation", Geomech. Eng., 29(3), 569-279. https://doi.org/10.12989/gae.2022.29.3.569.
  16. Yun, J.W. and Han, J.T. (2021), "Dynamic behavior of pile-supported wharves by slope failure during earthquake via centrifuge tests", Int. J. Geo-Eng., 21(1), 1-11. https://doi.org/10.1186/s40703-021-00161-4.