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Experimental Investigation on Performance of Helical Pile in Cohesionless Soil
Structures such as transmission towers, high-rise buildings, offshore structures and suspension bridges are subjected to uplift, compressive forces and overturning moment due to wind or waves. Helical pile is a popular foundation choice in many countries and used to resist uplift, compressive forces and overturning moment. Helical piles are easy to instal without generating the spoils and can take load immediately after the installation that offers the cost-reducing alternative methods to reinforced concrete grouted anchors and driven piles. In this paper, to study the behaviour of helical pile in sand, laboratory tests are conducted on small-scale model piles of mild steel by varying the loading conditions and helical blade diameter. Results obtained from the tests are compared with conventional hollow pile. The length of pile, relative density, type of soil and pitch distance are kept constant during investigation. The provision of such helices may provide an ideal anchorage system because of the significant locking up effect of the soils within the helices, resulting in increased pile capacity.
Experimental Investigation on Performance of Helical Pile in Cohesionless Soil
Structures such as transmission towers, high-rise buildings, offshore structures and suspension bridges are subjected to uplift, compressive forces and overturning moment due to wind or waves. Helical pile is a popular foundation choice in many countries and used to resist uplift, compressive forces and overturning moment. Helical piles are easy to instal without generating the spoils and can take load immediately after the installation that offers the cost-reducing alternative methods to reinforced concrete grouted anchors and driven piles. In this paper, to study the behaviour of helical pile in sand, laboratory tests are conducted on small-scale model piles of mild steel by varying the loading conditions and helical blade diameter. Results obtained from the tests are compared with conventional hollow pile. The length of pile, relative density, type of soil and pitch distance are kept constant during investigation. The provision of such helices may provide an ideal anchorage system because of the significant locking up effect of the soils within the helices, resulting in increased pile capacity.
Experimental Investigation on Performance of Helical Pile in Cohesionless Soil
Lecture Notes in Civil Engineering
Satyanarayana Reddy, C. N. V. (editor) / Muthukkumaran, K. (editor) / Satyam, Neelima (editor) / Vaidya, Ravikiran (editor) / Dhatrak, A. I. (author) / Dhage, M. M. (author) / Varma, H. R. (author) / Thakare, S. W. (author)
2021-09-27
10 pages
Article/Chapter (Book)
Electronic Resource
English
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