Uncoupled analysis of stabilizing piles in weathered slopes

Sangseom Jeong, Byungchul Kim, Jinoh Won, Jinhyung Lee

Research output: Contribution to journalArticlepeer-review

132 Citations (Scopus)


This paper describes a simplified numerical approach for analyzing the slope/pile system subjected to lateral soil movements. The lateral one-row pile response above and below the critical surface is computed by using load transfer approach. The response of groups was analyzed by developing interaction factors obtained from a three-dimensional nonlinear finite element study. An uncoupled analysis was performed for stabilizing piles in slope in which the pile response and slope stability are considered separately. The non-linear characteristics of the soil-pile interaction in the stabilizing piles are modeled by hyperbolic load transfer curves. The Bishop's simplified method of slope stability analysis is extended to incorporate the soil-pile interaction and evaluate the safety factor of the reinforced slope. Numerical study is performed to illustrate the major influencing parameters on the pile-slope stability problem. Through comparative studies, it has been found that the factor of safety in slope is much more conservative for an uncoupled analysis than for a coupled analysis based on three-dimensional finite element analysis.

Original languageEnglish
Pages (from-to)671-682
Number of pages12
JournalComputers and Geotechnics
Issue number8
Publication statusPublished - 2003 Dec

Bibliographical note

Funding Information:
This paper was supported by the Korean Ministry of Construction and Transportation (Project No. 970009-2). This support is gratefully acknowledged.

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Computer Science Applications


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