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Numerical Analysis of Pile-Reinforced Slopes
Reinforcing piles are one of several options for improving the stability of failing slopes. The design and implementation of such a stabilizing scheme relies on traditional design methods based on limit equilibrium methods with a focus on the overall factor of safety and does not implicitly consider deformations. To gain a better understanding of slope behavior, a study was conducted to investigate the displacement of slopes with, and without, reinforcing piles with a goal of identifying the optimum design parameters. A finite element model consisting of horizontal slice was used in the analysis which was performed using the commercially available software, ABAQUSTM. Finite element models were used to investigate pile spacing and the pile-row configuration. The horizontal slice model is a 2D horizontal slice with an applied body force driving soil movement. The cases studied included pile spacing (Case 1) and the pile configurations (Case 2). Results indicated that a S/D ratio of 4 produced the lowest displacements with the highest force transfer from the soil to the pile. The investigation of the three pile configurations considered in this study found that staggered pile rows are the most efficient in reducing slope deformations than an in-line arrangement.
Numerical Analysis of Pile-Reinforced Slopes
Reinforcing piles are one of several options for improving the stability of failing slopes. The design and implementation of such a stabilizing scheme relies on traditional design methods based on limit equilibrium methods with a focus on the overall factor of safety and does not implicitly consider deformations. To gain a better understanding of slope behavior, a study was conducted to investigate the displacement of slopes with, and without, reinforcing piles with a goal of identifying the optimum design parameters. A finite element model consisting of horizontal slice was used in the analysis which was performed using the commercially available software, ABAQUSTM. Finite element models were used to investigate pile spacing and the pile-row configuration. The horizontal slice model is a 2D horizontal slice with an applied body force driving soil movement. The cases studied included pile spacing (Case 1) and the pile configurations (Case 2). Results indicated that a S/D ratio of 4 produced the lowest displacements with the highest force transfer from the soil to the pile. The investigation of the three pile configurations considered in this study found that staggered pile rows are the most efficient in reducing slope deformations than an in-line arrangement.
Numerical Analysis of Pile-Reinforced Slopes
Daggett, Andrew (author) / Sharma, Sunil (author)
Geo-Congress 2013 ; 2013 ; San Diego, California, United States
Geo-Congress 2013 ; 2007-2016
2013-02-25
Conference paper
Electronic Resource
English
Numerical Analysis of Pile-Reinforced Slopes
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