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http://dx.doi.org/10.7843/kgs.2007.23.6.37

Effect of Lateral Pile Rigidity of Offshore Drilled Shafts by Developing p-y Curves in Marine Clay  

Kim, Young-Ho (Dept. of Civil Engrg., Yonsei Univ.)
Jeong, Sang-Seom (Dept. of Civil Engrg., Yonsei Univ.)
Kim, Jeong-Hwan (Civil & Environment Div., Samsung E&C)
Lee, Yang-Gu (Civil & Environment Div., Samsung E&C)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.6, 2007 , pp. 37-51 More about this Journal
Abstract
In this study, pile load tests have been carried out to develop new P-y curves and then, to investigate the effects of pile rigidities on laterally loaded offshore drilled shafts in Incheon marine clay. This paper consists mainly of two parts: the first part, performance of a series of lateral load tests on small- and full-scale piles under one- and two-way loadings and the second part, comparison between the measured and predicted results by using O'Neill's and Matlock's clay models. Based on the results obtained, it is shown that relatively good agreements in bending moments and lateral displacements were obtained between the measured results using calculated P-y curves and predicted ones by O'Neill's and Matlock's clay models. The cases were considered with varying rigidity factors based on pile diameter, length and subgrade soil reaction. Through comparisons, it is found that soil P-y curve influences highly the behavior of flexible pile rather than that of rigid pile.
Keywords
Flexible pile; Incheon marine clay; Matlock's clay model; Offshore drilled shaft; O'Neill's clay model; P-y curve; Rigid pile;
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