Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30121
Numerical Analysis of Jet Grouting Strengthened Pile under Lateral Loading

Authors: Reza Ziaie Moayed, Naeem Gholampoor

Abstract:

Jet grouting strengthened pile (JPP) is one of composite piles used in soft ground improvement. It may improve the vertical and lateral bearing capacity effectively and it has been practically used in a considerable scale. In order to make a further research on load transfer mechanism of single JPP with and without cap under lateral loads, JPP is analyzed by means of FEM analysis. It is resulted that the JPP pile could improve lateral bearing capacity by compared with bored concrete pile which is higher for shorter pile and the biggest bending moment of JPP pile is located in the depth of around 48% of embedded length of the pile. Meanwhile, increase of JPP pile length causes to increase of peak mobilized bending moment. Also, by cap addition, JPP piles will have a much higher lateral bearing capacity and increasing in cohesion of soil layer resulted to increase of lateral bearing capacity of JPP pile. In addition, the numerical results basically coincide with the experimental results presented by other researchers.

Keywords: Bending moment, FEM analysis, JPP pile, lateral bearing capacity.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1125701

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 842

References:


[1] L.Ren, H.Liu, and Y. Lei,“Technology and application of JG soil-cement-pilestrengthened pile,” Chinese Journal of Geotechnical Engineering, Vol. 30, pp. 518–522, Feb. 2008.
[2] H. Liu, L.Ren, and H. Zheng,“Experimental research on load transfer behaviors of single jet grouting soil-cement-pile strengthened pile with cap,” Chinese Journal of Rock Mechanics and Engineering, Vol. 28(3), pp. 525–532, Mar. 2009.
[3] L.Ren, H. Liu, H. Zhang, and H. Zheng,“Bearing capacity calculation and influence factors analysisof jet grouting soil-cement-pile strengthened pile,” Rock and Soil Mechanics, Vol. 31(7), pp. 2219–2225, Feb. 2010.
[4] L.Ren, and G. Kong,“Analysis on bearing capacity calculation and adjustment factor of JPP pile,” in Proc.IEEE, 2011, pp. 1970–1973.
[5] L.Ren, and G. Wang,“Practical variational analysis on vertical behavior of jet grouting soil-cement-pile strengthened pile,” Geotechnical Special Publication, ASCE, pp. 126–134, Feb. 2011.
[6] L.Ren, and H. Chai,“Analysis of factors influencing bearing characteristics of jet grouting soil-cement-pile strengthened pile,” Rock and Soil Mechanics, Vol. 33, pp. 183–192, Sep. 2012.
[7] H. Zheng, H. Liu, Y. Lei, and L.Ren,“Bearing capacity calculation and influence factors analysis of jet grouting soil-cement-pile strengthened pile,” Rock and Soil Mechanics, Vol. 32(1), pp. 217–223, Jan. 2011.