Shaking table test for reinforcement of soil slope with multiple sliding surfaces by reinforced double-row anti-slide piles

Wu, Honggang; Pai, Lifang

doi:10.1007/s11629-021-7046-2

Cited by 7 publications

(6 citation statements)

References 36 publications

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“…1). An inefficient arching area would arise with the clear spacing (D) considerably more prominent than 8d [21]. D ≤ 5d was suggested as the pile spacing on the reinforced slope to prevent the soil from freely flowing between the piles at these spacing ranges.…”

Section: Slope Modelingmentioning

confidence: 99%

“…A new multiobjective comprehensive method for improving the performance of antislide piles has been proposed recently: optimizing slope reinforcement using double piles [16][17][18][19]. The reliability of a pile-slope system has also been observed to be generally determined by representative failure modes, which may vary due to pile length, pile spacing, and pile location [20,21]. By placing piles in two or three rows, the slope stability is enhanced [22].…”

Section: Introductionmentioning

confidence: 99%

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Double-Row Pile Reinforcing on a Critical Slope at National Road in Tabanan, Bali

Munawir

2024

GEOMATE

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Due to heavy rain, a landslide occurred on the high slope at the National Road in Tabanan, Bali, and is forecasted to reoccur. Thus, the double-row piles will be analyzed as an alternative method to improve allowable bearing capacity (qa) and slope stability to mitigate this area. This study used various 2D and 3D numerical modeling techniques to analyze the slope model under two variables: the installment of parallel and nonparallel (zigzag) pile configurations and variations in a second-row pile diameter. With the smallest diameter (D = 0.3 m), the first row of piles has a diameter of 0.6 m and a pile spacing of (s) = 4D. The reinforcing piles were installed into the actual slope model. In addition, the second-row pile diameter varies from 0.3 to 0.6 m. Considering the standardized traffic load, PLAXIS and ABAQUS were implemented to numerically analyze the factor of safety (FS) and qa of the 2D and 3D finite element method (FEM). Compared with the unreinforced reinforcement of two rows of piles arranged in parallel, the FS increased significantly by 33.06% in the 2D FEM and 32.82% in the 3D FEM. Yet, the model with a zigzag configuration enhanced the FS by 33.20% in the 3D FEM. However, the numerical models showed a slight improvement in the qa in both 2D and 3D FEM. The slope model defined the highest FS and qa with pile diameter, D2 = 0.6 m (P2D1). Additionally, a rotational type of failure occurred on the slope toe.

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Section: Slope Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Double-Row Pile Reinforcing on a Critical Slope at National Road in Tabanan, Bali

Munawir

2024

GEOMATE

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“…And there are more tension cracks on the upper slope. Therefore, the anti-slide pile is usually buried in the middle and lower part of the slope in the actual project [34][35][36]. The anti-slide pile model established in this paper is a rectangular pile with a cross-section size of 2 m × 1.8 m and a length of 25 m. There is no load at the top of the pile, and the top 5 m of the pile body is restrained in the x, y, and z directions.…”

Section: Anti-slide Pile Support Schemementioning

confidence: 99%

Analysis of the Impact of the Former Abandoned Dregs of Mountain Highways on the Construction and Safety of New Bridge Pile Foundations

Liu,

Zhang,

Tang

2024

Applied Sciences

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In highway reconstruction and expansion projects, the impact of the abandoned dreg body produced by the original highway on the new bridge project cannot be ignored. If the abandoned dregs are not handled properly, they will cause great threat to the operation of the new highway as well as to the safety of the surrounding environment and personnel. In this paper, based on a South China highway reconstruction and expansion project, a model of the abandoned dreg body, bridge pile and anti-slide pile is established with the help of finite difference software FLAC3D 5.0. The calculation results show that compared with burying the anti-slide pile, slope cutting is more effective for improving the stability of the abandoned dreg body. Under the action of vertical force intensity, the displacement of the top of the pile increases continuously, and the maximum bending moment of the pile body increases firstly and then decreases. The pile displacement and bending moment of the bridge pile increase significantly in the storm condition compared with the normal condition. In addition, the abandoned dreg body hazard prevention and control technical measures are studied. The impacts of different locations of anti-slide pile burial on bridge piles are analyzed and compared, and it is determined that the optimal location of anti-slide pile burial is the middle of the secondary slope.

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“…Some studies have utilised foam sheets, particularly on the front and back boundaries of model walls, to address this shortcoming [86][87][88]. In contrast, others have employed glycerin or petroleum jelly to limit the friction between slope material and container walls [89,90]. It is worth noting that the use of mixed container boundaries (a combination of flexible band rigid boundaries) on selected sides poses concerns about the biased orientation of failure plane development and progression which is towards the flexible boundaries [91].…”

Section: Model Containers and Materials Placementmentioning

confidence: 99%

A Systematic Review of Physical Modelling Techniques, Developments and Applications in Slope Stability Analyses

Haundi,

Okonta

2024

Indian Geotech J

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An extensive evaluation of published articles suggests a lack of research on a systematic literature review relating to physical modelling techniques, developments and application in slope stability studies. However, there is growing interest in using physical model tests in slope stability investigations. The present study systematically reviews the methodologies and applications of physical modelling in slope stability research. The Scopus database was used to identify relevant studies which employed physical model tests in slope stability investigations. A combination of fifteen keywords was used to identify relevant articles. A PRISMA-P method for conducting a systematic review was adopted. Articles were screened and analysed, and extracted data were re-organised using an Excel sheet. Data relating to research objectives, physical model test techniques, instrumentation, scaling laws, numerical modelling, results, and findings were extracted and analysed. The systematic review highlights gaps requiring further studies, particularly in slope reinforcements using vegetation and strength deterioration of reinforcements performance under repeated loading exposures. It is found that scholars have not fully addressed the influence of loss of water on pore water regimes and its impact on stability when vegetation is applied as reinforcements. It is also found that the development of slope materials for soil slopes in physical model tests relies on the artificial development of such materials with minimal consideration of their long-term behaviour. Although other options, such as bio-cementation and desiccation techniques, which simulate the natural environment of the slopes, are neglected in slope material development, the present study recommends that future studies consider such techniques.

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Shaking table test for reinforcement of soil slope with multiple sliding surfaces by reinforced double-row anti-slide piles

Cited by 7 publications

References 36 publications

Double-Row Pile Reinforcing on a Critical Slope at National Road in Tabanan, Bali

Double-Row Pile Reinforcing on a Critical Slope at National Road in Tabanan, Bali

Analysis of the Impact of the Former Abandoned Dregs of Mountain Highways on the Construction and Safety of New Bridge Pile Foundations

A Systematic Review of Physical Modelling Techniques, Developments and Applications in Slope Stability Analyses

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