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http://dx.doi.org/10.12652/Ksce.2012.32.2C.049

Shaft Group Efficiency of Friction Pile Groups in Deep Soft Clay  

Paek, Jin-Yeol (연세대학교 토목공학과)
Cho, Jae-Yeon (연세대학교 토목공학과)
Jeong, Sang-Seom (연세대학교 토목공학과)
Hwang, Taik-Jean (동의대학교 토목공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.32, no.2C, 2012 , pp. 49-60 More about this Journal
Abstract
In this study, the behaviors of friction pile groups are investigated using 3D finite element (FE) analysis. The emphasis was quantifying on the shear load transfer (f-w) characteristics of pile groups and the shaft group effects. A framework for determining the f-w curve is proposed based on both theoretical analysis and field load test database. Through comparisons with case histories and FE results, it is shown that the proposed f-w curve is capable of predicting the behavior of a friction pile in deep soft clay. Additionally, a numerical analysis that takes into account the group efficiency factors were performed for major parameter on group pile-soil interaction, such as the pile spacing, pile arrangement, soil condition, and location of pile cap. Based on these results, the shaft group efficiency factors were also proposed.
Keywords
shear load transfer; f-w curve; group efficiency factor; soft clay; finite element;
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Times Cited By KSCI : 1  (Citation Analysis)
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