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http://dx.doi.org/10.7843/kgs.2008.24.8.149

Undrained and Drained Behaviors of Laterally-loaded Offshore Piles  

Seo, Dong-Hee (Centre for Offshore Foundation Systems, UWA)
Jeong, Sang-Seom (Dept. of Civil Engrg., Yonsei Univ.)
Kim, Young-Ho (Dept. of Civil Engrg., Yonsei Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.24, no.8, 2008 , pp. 149-160 More about this Journal
Abstract
Offshore pile foundations are prone to lateral soil pressures resulting from embankment construction for the reclamation on deepwater soft clay. Since the 1990s, offshore reclamation has actively progressed in Korea, connecting with the development of Songdo newtown, Incheon newport, and Busan newport representatively. Special attention has been given to lateral soil-structure interaction problems related to passively-loaded offshore pile foundations. Based on a plane strain large deformation finite element (LDFE) approach, this paper presents the results of investigation into undrained (short-term) and drained (long-term) behavior of passively-loaded offshore pile foundations. This study examines the effects of major factors, such as soil profile, pile head boundary condition, magnitude of embankment load, and average degree of consolidation. The results allowed quantification of differences in the magnitude of lateral soil pressure acting on the piles between undrained and drained phases.
Keywords
Drained; Large deformation finite element analysis; Lateral soil pressure; Offshore pile foundation; Undrained;
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