Laboratory and field study of the performance of helical piles in sandy soil

Document Type : Original Article

Authors

1 PhD candidate, Department of Civil Engineering, Noshirvani University of Technology, Babol, Iran

2 Associate professor, Department of Civil Engineering, Noshirvani University of Technology, Babol, Iran

Abstract

Developing different method in construction of deep footing plays a major role in optimized and economized performing of civil projects especially in problematic soils. One of the common types of deep footing is helical piles which have several advantages such as fast procedure, useful in different soil types, performing without noise and vibration, effective in pressure and tension and etc. In this paper, the performance of 1-helix & 2-helixes and 3-helixes in an un-grouted and grouted with the field and laboratory studies are discussed. Field studies include of helical piles behavior in sand. Laboratory tests with physical FCV modeling is also carried out on the soil of the site. Grouting effect on helical piles resistance is evaluated. Comparison load test results with analytical method were compared. Results show that performance cylindrical in sandy soils in helical piles is not suitable and increasing helical number pile capacity is decreases. Also, after grouting helical pile with three helixes increases more resistant compare to one helix and double helixes.
 

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References

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Journal of Structural and Construction Engineering
Volume 3, Issue 3 - Serial Number 8
December 2016
Pages 5-15

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History

  • Receive Date: 16 April 2016
  • Revise Date: 20 October 2016
  • Accept Date: 17 November 2016

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