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Setting up Relationship between Pull-out Resistance of Helical Anchor and Rotational Penetration Torque for Methodology Development
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 Title & Authors
Setting up Relationship between Pull-out Resistance of Helical Anchor and Rotational Penetration Torque for Methodology Development
Kim, Nak-Kyeong; Kim, Young-Uk; Moon, Jun-Ho; Xin, Zhen-Hua; Gu, Kyo-Young;
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 Abstract
This study evaluated the potential of methodology development of the helical type anchor for soft ground applications. The rotational penetration of the helix structure might make construction-steps easy without the soil spitting and reusable rods could reduce the material cost. Removal of the anchors would be simple as a construction, which can be named the removal anchor. The anchoring resistance after construction is strongly related to the number of helixes resulting in a concise design process. The investigation involved a chamber test with soft soils. In the test, a specially designed and fabricated helical anchor and torque-driver were used to obtain the maximum pull-out resistance of the anchor after rotational penetration. As a result of the tests, The rotational torque and pull-out resistance have a proportional relationship with the strength of the prepared soils. Within the range of the study, the torque of the anchor penetrating increased with increasing pull-out resistance.
 Keywords
Anchor;Helix;Soft Ground;Smart;Torque;
 Language
Korean
 Cited by
 References
1.
Derrick. P, "the story of the great subway expansion that saved New York, NewYork University Press," Tunnelingto the future, 2001.

2.
Xanthakos, P. P., "Ground Anchors and Anchored Structures," A Wiley-Interscience Publication, 1991.

3.
An, S. G., Kim, N. K., Kim, Y. U. and Kang, H. D., "Development of Smart Helical Anchor, Proceedings," The Korea Academia-Industrial cooperation Society Fall National Conference, Jeju, Korea, pp 1-3, 2013.

4.
An, S. G., Kim, N. K., Kim, Y. U. and Kang, H. D., "Relationship between Torque and Ultimate Capacity of Smart Helical Anchor, Proceedings," Korean Geotecnical Society Fall National Conference, Seoul, Korea, pp. 610-617, 2014.

5.
Ghaly, A., Hanna, A., and Hanna, M., Uplift Behavior of Screw Anchors in Sand. I: Dry Sand, Journal of Geotechnical Engineering, 117(5), 773-793, 1991. DOI: http://dx.doi.org/10.1061/(ASCE)0733-9410(1991)117:5(794) crossref(new window)

6.
Mitsch, M. P. and Clemence, S. P., "The Uplift Capacity of Helix Anchors in Sand. Uplift Behavior of Anchor Foundation in Soil," American Society of Civil Engineers, pp. 26-47, 1985.

7.
Davisson, M. T., "Design Pile Capacity, Proceedings, Conference on Design and Installation of Pile Foundations and Cellular Structures, Lehigh University," Envo Public. Co. pp. 75-85, 1970.

8.
Davisson, M. T. "High Capacity Piles, Proceedings, Lecture Series, Innovations in Foundation Construction," American Society of Civil Engineers, Illinois Section, Chicago, pp. 81-112, 1972.