Abstract
A series of centrifuge model tests of sandy slopes were conducted to study the dynamic behavior of pile-reinforced slopes subjected to various motions. Time histories of accelerations, bending moments and pile earth pressures were obtained during excitation of the adjusted El Centro earthquake and a cyclic motion. Under a realistic earthquake, the overall response of the pile-reinforced slope is lower than that of the non-reinforced slope. The histories of bending moments and dynamic earth pressures reach their maximums soon after shaking started and then remain roughly stable until the end of shaking. Maximum moments occur at the height of 3.5 m, which is the deeper section of the pile, indicating the interface between the active loading and passive resistance regions. The dynamic earth pressures above the slope base steadily increase with the increase of height of pile. For the model under cyclic input motion, response amplitudes at different locations in the slope are almost the same, indicating no significant response amplification. Both the bending moment and earth pressure increase gradually over a long period.
This is a preview of subscription content, log in via an institution to check access.
We’re sorry, something doesn't seem to be working properly.
Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.
References
ZHAO Ming-jie, HE Guang-chun, WANG Dou-yin. Treatment techniques in slope engineering [M]. Beijing: China Communications Press, 2003: 89. (in Chinese)
ITO T, MATSUI T. Methods to estimate lateral force acting on stabilizing piles [J]. Soils and Foundations, 1975, 15: 43–59.
ITO T, MATSUI T, HONG W P. Extended design method for multi-row stabilizing piles against landslide [J]. Soils and Foundations, 1982, 22: 1–13.
HASSIOTIS S, CHAMEAU J L, GUNARATNE M. Design method for stabilization of slopes with piles [J]. Journal of Geotechnical and Geoenvironmental Engineering, 1997, 123(4): 314–323.
YANG Xiao-li, SUI Zhi-rong. Seismic failure mechanisms for loaded slopes with associated and nonassociated flow rules [J]. Journal of Central South University of Technology, 2008, 15(3): 276–279.
DAI Zi-hang. Study on distribution laws of landslide-thrust and resistance of sliding mass acting on antislide piles [J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(4): 517–521. (in Chinese)
ABDOUN T, DOBRY R, O’ROURKE T, GOH S H. Pile response to lateral spreads: Centrifuge modeling [J]. Journal of Geotechnical and Geoenvironmental Engineering, 2003, 129(10): 869–878.
BRANDENBERG S J, BOULANGER R W, KUTTER B L, CHANG D. Behavior of pile foundations in laterally spreading ground during centrifuge tests [J]. Journal of Geotechnical and Geoenvironmental Engineering, 2005, 131(11): 1378–1391.
TAJI Y, SATO M, YANAGISAWA E. Modeling of a prototype soil-pile-structure system during seismic ground liquefaction [C]// Proceedings of the Centrifuge 98. Rotterdam: Balkema, 1998: 283–288.
SATOH H, OHBO N, YOSHIZAKO K. Dynamic test on behavior of pile during lateral ground flow [C]// Proceedings of the Centrifuge 98. Rotterdam: Balkema, 1998: 327–332.
HORIKOSHI P, FUJIWARA T, TATEISHI A. Pile behavior during seismically-induced lateral spreading of liquefied sand [C]// Proceedings of the Centrifuge 98. Rotterdam: Balkema, 1998: 337–382.
BOULANGER R W, CURRAS C J, KUTTER B L, WILSON D W, ABGHARI A. Seismic soil-pile-structure interaction experiments and analyses [J]. Journal of Geotechnical and Geoenvironmental Engineering, 1999, 125(9): 750–759.
LI Rong-jian. A study on the aseismic reinforcing mechanism of stabilizing piles in soil slope [D]. Beijing: Tsinghua University, 2008: 37–82. (in Chinese)
YU Yu-zhen, DENG Li-jun. Centrifuge modeling of seismic behavior of slopes reinforced by stabilizing pile [J]. Chinese Journal of Geotechnical Engineering, 2007, 29(9): 1320–1323. (in Chinese)
YU Yu-zhen, DENG Li-jun, SUN Xun, LU He. Centrifuge modeling of slope response to earthquake [J]. Bulletin of Earthquake Engineering, 2008, 6(3): 447–461.
MADABHUSHI S P G, HAIGH S K, SUBEDI B R. Seismic behavior of steep slopes [C]// Proceedings of Physical Modeling in Geotechnics. Rotterdam: Balkema, 2002: 489–494.
TABOADA-URTUZUASTEGUI V M, MARTINEZ-RAMIREZ G, ABDOUN T. Centrifuge modeling of seismic behavior of a slope in liquefiable soil [J]. Soil Dynamics and Earthquake Engineering, 2002, 22: 1043–1049.
MONONOBE H. Considerations into earthquake vibrations and vibration theories [J]. Journal of Japan Society of Civil Engineers, 1924, 10(5): 1063–1094. (in Japanese)
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item: Project(50639060) supported by the National Natural Science Foundation of China; Project(610103002) supported by the State Key Laboratory of Hydroscience and Engineering, Tsinghua University, China
Rights and permissions
About this article
Cite this article
Yu, Yz., Deng, Lj., Sun, X. et al. Centrifuge modeling of dynamic behavior of pile-reinforced slopes during earthquakes. J. Cent. South Univ. Technol. 17, 1070–1078 (2010). https://doi.org/10.1007/s11771-010-0599-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11771-010-0599-9