Analytical evaluation of deformation behavior of cantilever type retaining wall using large diameter steel tubular piles into stiff ground
Steel pipe pile walls are utilized for many projects in Japan. If the stiffness of the embedment ground is high, the cantilever type structure can be applied for high retaining wall using large diameter steel pipe piles with high flexural rigidity. In the design of large diameter pile wall, a conventional method used for small height flexible sheet pile walls is adopted. However, this method may not be rational to high retaining height large diameter steel pipe wall. A critical concern in the conventional method is requirement of minimum embedment depth. In this paper, the behavior of walls with large-diameter piles embedded into soft rock was studied using a beam-spring model analysis and FEM, targeting the wall embedment length as the main parameter. From the comparison with centrifuge model results, it was confirmed that the retaining wall behavior can be evaluated by the analytical models and the minimum embedment length requirement by the conventional method could be over-conservative.
KeywordsFEM steel pipe pile cantilever retaining wall soft rock
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The authors gratefully acknowledge the invaluable advice and guidance provided by the members and advisers of the IPA TC1 (International Press-in Association, Committee on Application of Cantilever Type Steel Tubular Pile Wall Embedded to Stiff Ground) in connection with the preparation of this paper.
- International Press-in association (IPA), (2014). Design and construction manual of steel tubular pile earth retaining walls by Gyro press Method (Rotary cutting Press-in), (in Japanese)Google Scholar
- Japan Technical Association for Steel Pipe Piles and Sheet Piles (JASPP) and Advanced Construction Technology Center (ACTEC), (2007). Design manual of cantilever type steel sheet pile retaining wall, pp 39–41.Google Scholar
- Richards, D.J., Clayton, C.R.I., Powrie, W., and Hayward, T. (2004). Geotechnical analysis of a retaining wall in weak rock. Proc. ICE, Geotechnical Engineering, 157(1), pp.13–26.Google Scholar
- Kunasegaram, V. et al. (2018). Stability of selfstanding high stiffness-steel pipe sheet pile walls embedded in soft rocks: Proceeding of the 1st International Conference on Press-in Engineering, Kochi, pp 143–152.Google Scholar
- Chang, Y.L. (1937). Lateral pile loading tests, Transaction of ASCE, 102, pp 273–276.Google Scholar
- Koda, M. et al. (2000). Modeling and evaluation of P-Y curves of single pile in sand: Journal of Japan Society of Civil Engineering, pp 191–207.Google Scholar