Coupled effects in stability analysis of pile-slope systems

Jinoh Won, Kwangho You, Sangseom Jeong, Sooil Kim

Research output: Contribution to journalArticle

151 Citations (Scopus)

Abstract

A numerical comparison of predictions by limit equilibrium analysis and 3D numerical analysis is presented for a slope-pile system. Special attention is given to the coupled analysis based on the explicit-finite-difference code, FLAC 3D. To this end, an internal routine (FISH) was developed to calculate a factor of safety for a pile-reinforced slope according to a shear strength reduction technique. Coupled analyses were performed for stabilizing piles in a slope, in which the pile response and slope stability are considered simultaneously and subsequently the factors of safety are compared to a solution for a homogeneous slope using an uncoupled analysis (limit equilibrium analysis). Based on a limited parametric study, it is shown that the factor of safety for the slope is less conservative for a coupled analysis than for an uncoupled analysis and thus represents a definitely larger safety factor when the piles are installed in the middle of the slopes and the pile heads are restrained.

Original languageEnglish
Pages (from-to)304-315
Number of pages12
JournalComputers and Geotechnics
Volume32
Issue number4
DOIs
Publication statusPublished - 2005 Jun 1

Fingerprint

stability analysis
Piles
pile
safety
pile response
limit analysis
FLAC
Slope stability
Safety factor
slope stability
Shear strength
shear strength
analysis
effect
Numerical analysis
prediction

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Computer Science Applications

Cite this

Won, Jinoh ; You, Kwangho ; Jeong, Sangseom ; Kim, Sooil. / Coupled effects in stability analysis of pile-slope systems. In: Computers and Geotechnics. 2005 ; Vol. 32, No. 4. pp. 304-315.
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Coupled effects in stability analysis of pile-slope systems. / Won, Jinoh; You, Kwangho; Jeong, Sangseom; Kim, Sooil.

In: Computers and Geotechnics, Vol. 32, No. 4, 01.06.2005, p. 304-315.

Research output: Contribution to journalArticle

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