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 language | English |
|---|---|
| Pages (from-to) | 304-315 |
| Number of pages | 12 |
| Journal | Computers and Geotechnics |
| Volume | 32 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2005 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Geotechnical Engineering and Engineering Geology
- Computer Science Applications
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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 journal › Article
TY - JOUR
T1 - Coupled effects in stability analysis of pile-slope systems
AU - Won, Jinoh
AU - You, Kwangho
AU - Jeong, Sangseom
AU - Kim, Sooil
PY - 2005/6/1
Y1 - 2005/6/1
N2 - 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.
AB - 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.
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U2 - 10.1016/j.compgeo.2005.02.006
DO - 10.1016/j.compgeo.2005.02.006
M3 - Article
AN - SCOPUS:20444402253
VL - 32
SP - 304
EP - 315
JO - Computers and Geotechnics
JF - Computers and Geotechnics
SN - 0266-352X
IS - 4
ER -