Comparison of Pile Settlement and Bearing Capacity in Cohesionless Soil

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Comparison of Pile Settlement and Bearing Capacity in Cohesionless Soil

Author Affiliations

¹ Department of Civil Engineering, Leading University, BANGLADESH

Res. J. Engineering Sci., Volume 4, Issue (11), Pages 1-4, November,26 (2015)

Abstract

In homogeneous cohesionless soil when piles are installed, the soil near the pile gets disturbed to a distance of a few pile diameters around its periphery. In driven piles, this disturbance results into compaction and increased density of the surrounding soil. Again in bored piles the disturbance may result into some loosening of the surrounding soil. The installation of piles results into changes in the surrounding soil density. The bearing capacity of piles should be estimated based on the changed soil properties. However, it is difficult to predict these changes in surrounding soil properties due to pile installation because of the complex interaction between the soil and pile during and after construction. And so that the pile bearing capacity is estimated on the basis of initial strength and different characteristics of deformation of the soil deposit. This paper shows a study area where the total 8 bore holes details would make a comparison on bearing capacity of pile and differences of settlements for a proposed design consideration of deep foundation.

References

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Salgado, R. Prezzi and M. Seo, H., Advanced modeling tools for the analysis of axially loaded piles. In Proc. Of the International Workshop on Recent Advances in Deep Foundations (IWDPF07): Ed. by Kikuchi, Otani, Kimura and Morikawa. Port and Airport Research Institute, Yokosuka, Japan, Taylor and Francis Group, London, UK, 49-67 (2007)
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[ref1] Gabrielaitis L. and Papinigis V., Design of Deep Foundations on Bored Piles. May 19-21, 2010, Vilnius, Lithuania, the 10th International Conference (2010)

[ref2] Salgado, R. Prezzi and M. Seo, H., Advanced modeling tools for the analysis of axially loaded piles. In Proc. Of the International Workshop on Recent Advances in Deep Foundations (IWDPF07): Ed. by Kikuchi, Otani, Kimura and Morikawa. Port and Airport Research Institute, Yokosuka, Japan, Taylor and Francis Group, London, UK, 49-67 (2007)

[ref3] Meyerhof G.G., Ultimate Bearing Capacity of Footings on Sand Layer Overlying Clay, Can. Geotech. J., 11(2), 223-229 (1974)

[ref4] Peck R.B., Hansen W.E. and Thornburn T.H., Foundation Engineering, 2nd ed. Wiley, New York, 1974

[ref5] Meyerhof G.G., Scale Effects of Ultimate Pile Capacity, J. Geotech. Eng. Diu., ASCE, 109(6), 797-806 (1983)

[ref6] Vesic A.S., Design of Pile Foundations, Transportation Research Board, National Research Council, Washington, DC, (1977)

[ref7] Sharma H.D. and Joshi R.C., Drilled Pile Behavior in Granular Deposits, Can. Geotech. J.,25(2), 222-232 (1988)

[ref8] Vesic A.S., Load Transfer in Pile-Soi.l Systems, Proceedings Conference on Design Installation of Pile Foundations, Lehigh University, Bethlehem, PA, 47-73 (1970a)