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http://dx.doi.org/10.7843/kgs.2012.28.2.57

The Behavior and Resistance of Connected-pile Foundations for Transmission Tower from In-situ Lateral Load Tests  

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)
Kim, Dae-Hak (Unicon istitute of technology)
Publication Information
Journal of the Korean Geotechnical Society / v.28, no.2, 2012 , pp. 57-70 More about this Journal
Abstract
For soft ground, a pile foundation is typically used as a substructure of transmission tower. However, differential settlement between the foundations can cause structural damage of transmission tower. The connected-pile foundation is a type of group foundation consisting of four foundations connected with beams, and it was suggested in USA and Japan. In this study, a series of 1/8 scale model pile tests were performed to investigate the effect of load direction and stiffness of connecting beam on the responses of connected-pile foundation. As a result, the load capacities of the connected-pile foundation were larger than those of the conventional group pile foundation. For example, under the given test conditions in this paper, the resistibility against differential settlement was improved significantly for connected-pile foundation and its efficiency was maximized when the stiffness of connecting beams is about 25% of the mat foundation.
Keywords
Connected-pile foundation; Lateral load test; Soft ground; Transmission tower; Ultimate lateral load capacity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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