A Simple Algorithm for Analyzing a Piled Raft by Considering Stress Distribution

Document Type : Research Papers

Authors

1 Ph.D. Candidate, Department of Civil Engineering, Iran University of Science and Technology, Tehran, Iran.

2 Associate Professor, School of Civil Engineering, College of Engineering, University of Tehran, P.O.Box: 11155-4563, Tehran, Iran.

Abstract

Numerous techniques have been presented by different researchers to analyze piled raft. In order to analyze pile foundation, soil can be modeled as spring, continuous medium, or porous media. Pile can also be modeled as spring or continuous medium. This study includes three main stages: a short description of different types of analysis methods of pile foundation, writing a computer program based on the finite element method (FEM) for analyzing piled raft foundation (in this program, foundation is modeled as a flexible plate, soil and pile are modeled by Winkler springs), and comparison of different concepts of pile group design.

Keywords

References

Akin, J.E. (1988). Finite element analysis for undergraduate, Academic Press, London.
Badinlo, B.(2006). “Analysis of mat foundation on pile and soil and comparison of conventional and modern viewpoints to design pile group”, M.Sc. Thesis, College of Engineering, University of Tehran, Tehran, Iran.
Feleming, W.G.K., Weltman, A.J. and Randolph, M.F. (2008). Piling Engineering, John Wiley and Sons, 120p, Surrey University Press, London, UK, 3rd  edition.
Ghorbani,A. (1997).“Nonlinear and linear analysis of interaction between pile foundation and soil and comparison of analysis methods”, M.Sc. Thesis, School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran.
Hooper, J.A. (1973). “Observation on the behavior of a piled raft foundation in London clay”, Proceeding of Institution of Civil Engineers, 55(2), 855-877.
Poulos H.G. and Davis, A.J. (2005). “Foundation design for the Emirates twin tower, Dubai”, Journal of Geotechnical, 6(42), 716-730.
Poulos, H.G. (1989). “Pile behavior – Theory and application”, Geotechnique, 39(3), 365-415.
Poulos, H.G. and Davis, E.H. (1980).Pile foundation analysis and design, John Wiley and Sons, 250p, New York.
Poulos, H.G. and Makarchian, M. (1996), “Simplified method for design of underpinning piles”, Geotechnical Engineering, ASCE, 122(9), 745-751.
Poulos, H.G., Small, J.C., Ta, L.D., Sinha, J. and Chen, L. (1997). “Comparison of some methods for analysis of piled rafts”, Proceedings of 14th International Conference on Soil Mechanics and Foundation Engineering, Humburg, Germany, Vol.  2, pp. 1119-1124.
SaeediAzizkandi, A. (2008), “Analysis of piled raft against vertical load”, M.Sc. Thesis, College of Engineering, University of Tehran, Tehran, Iran.
Timoshenko, S.P. and Woinowsky-Krieger, S. (1959). Theory of Plates and Shells, McGraw-Hill, New York.
Tsytovich, N. A. (1963). Mekhanika Gruntov (soil mechanics), Stroiizdat, 4th Edition, Moscow.
Vesic, A.S.(1961). “Beams on elastic sub grade and the winkler’s hypothesis”, 5th International Conference on Soil Mechanics and Foundation Engineering, Paris, Vol. 1, pp. 845-50.
 
 
 
Civil Engineering Infrastructures Journal
Volume 47, Issue 2 - Serial Number 2
December 2014
Pages 215-227

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History

  • Receive Date: 26 November 2012
  • Revise Date: 21 September 2013
  • Accept Date: 30 September 2013

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