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http://dx.doi.org/10.7843/kgs.2012.28.8.31

Resistance Increasing Factor of Connected-pile Foundation for Transmission Tower in Clay  

Kyung, Doo-Hyun (School of Civil and Environmental Eng, Yonsei Univ.)
Lee, Jun-Hwan (School of Civil and Environmental Eng, Yonsei Univ.)
Paik, Kyu-Ho (Department of Civil Eng, Kwandong Univ.)
Kim, Dae-Hong (KEPRI/KEPCO)
Publication Information
Journal of the Korean Geotechnical Society / v.28, no.8, 2012 , pp. 31-41 More about this Journal
Abstract
Pile foundation for transmission tower constructed in weak ground can cause the damage of the tower due to the different settlement between the foundations. In Japan and USA, connected-pile foundations whose 4 foundations are connected each other by beams were used for transmission tower (TEPCO 1988, IEEE 2001). Resistance increasing factors for connected-pile foundation signify increasing amount of resistance due to the effect of connected-pile material. In this study, we performed model lateral load tests of connected-pile foundations for transmission tower and found the resistance increasing factors for connected-pile foundation. The tests were performed in silty clay, and the resistance increasing factors were founded in various conditions that lateral load directions and height, the stiffness of beams in the connected-pile foundations were changed. The resistance increasing factors from our research were presented as a function of normal lateral loading height and normal stiffness of the connected-pile material. The resistances which were estimated from the resistance increasing factors were similar to measured values.
Keywords
Resistance increasing factor; Transmission tower; Connected-pile foundation; Lateral load test; Clay;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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