KSCE Journal of Civil Engineering

, Volume 20, Issue 7, pp 2670–2676 | Cite as

Influence of isosceles trapezoid cross-section on the reinforcement effect of stabilizing piles

  • Changdong LiEmail author
  • Xinwang Liu
  • Qingtao Liu
  • Tao Liu
Technical Note Geotechnical Engineering


The paper conducts the study on the influence of isosceles trapezoid cross section on the reinforcement effect of stabilizing piles by employing the numerical modeling approach. On the basis of soil arching theory with end-bearing soil arching and friction soil arching, the modified mechanical model for the arbitrary isosceles trapezoid cross-section piles was proposed. The impacts of different slope ratios of the sidewall of the isosceles trapezoid cross-section piles on the displacement and load sharing of driving force were examined utilizing the explicit finite-difference software FLAC3D. The result of displacement contour graphs indicates that the stabilizing piles with trapezoid cross-section are better capable of resisting the deformation under the action of driving force. The logarithmic function between the load sharing percentage of end-bearing soil arching and slope ratio, and power function between the load sharing percentage of the friction soil arching and slope ratio were established for inner isosceles trapezoid crosssection piles. Similarly, the power function between the load sharing percentage of end-bearing soil arching and slope ratio was proposed for outer isosceles trapezoid cross-section piles. Furthermore, the reaction of soil arching on the stabilizing piles in view of the stress distribution discipline around piles was investigated. The result shows that the maximum vertical stress occurs in the back corners of stabilizing piles; consequently, the strength and rigidity of the back corners of stabilizing piles should be strengthened to resist the concentrated stress.


stabilizing pile landslide isosceles trapezoid cross-section soil arching effect reinforcement effect 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Ashour, M. and Ardalan, H. (2012). “Analysis of pile stabilized slopes based on soil-pile interaction.” Computers and Geotechnics, Vol. 39, pp. 85–97, DOI: 10.1016/j.compgeo.2011.09.001.CrossRefGoogle Scholar
  2. Chen, C. Y. and Martin, G. R. (2002). “Soil-structure interaction for landslide stabilizing piles.” Computers and Geotechnics, Vol. 29, No. 5, pp. 363–386, DOI: 10.1016/S0266-352X(01)00035-0.CrossRefGoogle Scholar
  3. Frank, R. and Pouget, P. (2008). “Experimental pile subjected to long duration thrusts owing to a moving slope.” Geotechnique, Vol. 58, No. 8, pp. 645–658, DOI: 10.1680/geot.2008.58.8.645.CrossRefGoogle Scholar
  4. Ho, I. H. (2009). Optimization of pile reinforced slopes using finite element analyses, PhD Thesis, Iowa State University, USA.Google Scholar
  5. Ito, T. and Matsui, T. (1975). “Methods to estimate lateral force acting on stabilizing piles.” Soils and Foundations, Vol. 15, No. 4, pp. 43–59.CrossRefGoogle Scholar
  6. Jeong, S., Kim, B., Won, J., and Lee, J. (2003). “Uncoupled analysis of stabilizing piles in weathered slopes.” Computers and Geotechnics, Vol. 30, No. 8, pp. 671–682, DOI: 10.1016/j.compgeo.2003.07.002.CrossRefGoogle Scholar
  7. Kahyaolu, M. R., Imançli, G., Önal, O., and Kayalar, A. S. (2012). “Numerical analyses of piles subjected to lateral soil movement.” KSCE Journal of Civil Engineering, Vol. 16, No. 4, pp. 562–570, DOI: 10.1007/s12205-012-1354-6.CrossRefGoogle Scholar
  8. Kim, B. T. and Kim, Y. S. (1999). “Back analysis for prediction and behavior of laterally loaded single piles in sand.” KSCE Journal of Civil Engineering, Vol. 3, No. 3, pp. 272–288, DOI: 10.1007/BF02823813.Google Scholar
  9. Li, C. D. (2009). Study on interaction mechanism between anti-slide pile and landslide mass and pile optimization, PhD Thesis, China University of Geosciences, Wuhan (in Chinese).Google Scholar
  10. Li, C. D., Tang, H. M., Hu, X. L., Wang, L. Q., and Liu, Q. T. (2012). “Research on load transferring and sharing law of anti-sliding piles under different isosceles trapezoid cross-section.” Advanced Materials Research, Vols. 446-449, pp. 3007–3014.Google Scholar
  11. Li, C. D., Tang, H. M., Hu, X. L., and Wang, L. Q. (2013a). “Numerical modelling study of the load sharing law of anti-sliding piles based on the soil arching effect for Erliban landslide, China.” KSCE Journal of Civil Engineering, Vol. 17, No. 6, pp. 1251–1262, DOI: 10.1007/s12205-013-0074-x.CrossRefGoogle Scholar
  12. Li, C. D., Wang, L. Q., Jing H. Y., and Liu, Q. T. (2013b). “Protection control scheme and evaluation of effects on pipeline crossing beneath landslide area.” Journal of Pipeline Systems Engineering and Practice, Vol. 4, No. 1, pp. 41–48, DOI: 10.1061/(ASCE)PS.1949-1204.0000130.CrossRefGoogle Scholar
  13. Liang, L., Fu, X., Wan, R. F., and He, X. B. (2014). “Optimal design of anti-sliding piles based on genetic algorithm.” Electronic Journal of Geotechnical Engineering, Vol. 19, Bund. V, pp. 6425–6433.Google Scholar
  14. Martin, G. R. and Chen, C. Y. (2005). “Response of piles due to lateral slope movement.” Computers and Structures, Vol. 83, Nos. 8-9, pp. 588–598, DOI: 10.1016/j.compstruc.2004.11.006.CrossRefGoogle Scholar
  15. Song, Y. S., Hong, W. P., and Woo, K. S. (2012). “Behavior and analysis of stabilizing piles installed in a cut slope during heavy rainfall.” Engineering Geology, Vols. 129-130, 56–67, DOI: 10.1016/j.enggeo.2012.01.012.CrossRefGoogle Scholar
  16. Won, J., You, K., Jeong, S., and Kim, S. (2005). “Coupled effects in stability analysis of pile-slope systems.” Computers and Geotechnics, Vol. 32, No. 4, pp. 304–315, DOI: 10.1016/j.compgeo. 2005.02.006. goCrossRefGoogle Scholar

Copyright information

© Korean Society of Civil Engineers and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Changdong Li
    • 1
    Email author
  • Xinwang Liu
    • 1
  • Qingtao Liu
    • 2
  • Tao Liu
    • 1
  1. 1.Faculty of EngineeringChina University of GeosciencesWuhanChina
  2. 2.Qingdao Geotechnical Investigation And Surveying InstituteQingdaoChina

Personalised recommendations