Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31903
Effect of Type of Pile and Its Installation Method on Pile Bearing Capacity by Physical Modeling in Frustum Confining Vessel

Authors: Seyed Abolhasan Naeini, M. Mortezaee

Abstract:

Various factors such as the method of installation, the pile type, the pile material and the pile shape, can affect the final bearing capacity of a pile executed in the soil; among them, the method of installation is of special importance. The physical modeling is among the best options in the laboratory study of the piles behavior. Therefore, the current paper first presents and reviews the frustum confining vessel (FCV) as a suitable tool for physical modeling of deep foundations. Then, by describing the loading tests of two open-ended and closed-end steel piles, each of which has been performed in two methods, “with displacement" and "without displacement", the effect of end conditions and installation method on the final bearing capacity of the pile is investigated. The soil used in the current paper is silty sand of Firuzkuh, Iran. The results of the experiments show that in general the without displacement installation method has a larger bearing capacity in both piles, and in a specific method of installation the closed ended pile shows a slightly higher bearing capacity.

Keywords: physical modeling, frustum confining vessel, pile, bearing capacity, installation method

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 255

References:


[1] Moseley, M.P. and Kirsch, K., Ground Improvement, 2nd Edition, Spon Press Publication, 430 pages, London (2004).
[2] Mullins, G., Dapp, S., Fredrerick, E. and Wagner, R. Pressure Grouting Drilled Shaft Tips-Phase I final report, Florida Department of Transportation, Fla (2001).
[3] Sieradzki, M.P., Bartlett, W., Patton, B.W., Sereno, D.J. and Wehrlen, P. Deep Dynamic Compaction: Practical and Cost-Effective Ground Improvement at the Port of Long Beach, American Society of Civil Engineering, ASCE, Ports 2013; pp. 630-639 (2013).
[4] Pinto, A., Pereira, A. and Cardoso, D. “Ground improvement solutions at Sana Vasco da Gama Royal Hotel", Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering, pp. 2180-2184 (2009).
[5] Zare, M. and Eslami, A. (2014) "Study of deep foundations performance by Frustum Confining Vessel (FCV)", International Journal of Civil Engineering (IJCE), 12(4), pp. 271-280, Tehran, Iran (2014).
[6] Zarrabi, M. and Eslami, A. \Behavior of piles under different installation effects by physical modeling", International Journal of Geomechanics, 16(5), p.04016014, USA (2016).
[7] Sedran G. Experimental and Analytical Study of a Frustum Confining Vessel, Doctoral Thesis, McMaster University, 1999.
[8] Zare, M., Eslami, A., Abrang, A. and Asadi, A. (2013), “Frustum Confining Vessel (FCV) for Investigation of Deep Foundations Performance”, Proceedings of the 38th Annual Conference on Deep Foundations, 2013, Phoenix, AZ, USA, (DFI).
[9] Karimi, A., Eslami, A., Zarrabi, M., Khazaei, J. (2017). 'Study of pile behavior by improvement of confining soils using frustum confining vessel', Scientia Iranica, 24(4), pp. 1874-1882.
[10] Cooke, R.W and Whitaker, T. (1961), “Experiments on Model Piles with Enlarged Bases,” Geotechnique, 11 (1), pp 1-13.
[11] Randolph, M.F. (2003), “Load Transfer Analysis of Axially Loaded Piles”, RATZ software manual, Perth, Australia.