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An Experimental Study on Behavior of Composite Pile  

Lee, Seungho (상지대학교 건설시스템공학과)
Kim, Dongmin ((주)한국종합기술)
Publication Information
Journal of the Korean GEO-environmental Society / v.11, no.2, 2010 , pp. 23-32 More about this Journal
Abstract
Demand on pile foundation is rapidly increasing, as an investment for the social overhead capital getting enlarged in Korea. Steel piles are in general use in construction due to their workability and superior durability. But the recent global rise in steel price led the engineers to seeking for an economical alternative that still has equivalent characteristics as compared with the steel pile. In this regard a composite pile, in which steel suitable to resist the tensile stress are used in the upper part of the pile, while less expensive PHC pile is adopted in the lower part of the pile where axial stress should prevail, was studied and both pile loading test and load transfer test were performed for the piles which have been constructed for the foundation of a bridge in Korea. These test results and some theories already issued were compared, and it was shown that p-y nonlinear analysis gave rise to similar results.
Keywords
Pile foundation; Composite pile; Pile loading test; Load transfer test;
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