Wedge failure analysis of soil resistance on laterally loaded piles in clay

Youngho Kim, Sangseom Jeong, Sungjune Lee

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)


A fundamental study of pile-soil systems subjected to lateral loads in clay soil was conducted by using experimental tests and a lateral load-transfer approach. The emphasis was on an improved wedge failure model developed by considering three-dimensional combination forces and a new hyperbolic p-y criterion. A framework for determining the p-y curve on the basis of both theoretical analysis and experimental load test results is proposed. The proposed p-y method is shown to be capable of predicting the behavior of a large-diameter pile under lateral loading. The proposed p-y curves with an improved wedge model are more appropriate and realistic for representing a pile-soil interaction for laterally loaded piles in clay than the existing p-y method.

Original languageEnglish
Pages (from-to)678-694
Number of pages17
JournalJournal of Geotechnical and Geoenvironmental Engineering
Issue number7
Publication statusPublished - 2011 Jul 5

All Science Journal Classification (ASJC) codes

  • General Environmental Science
  • Geotechnical Engineering and Engineering Geology


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