An experimental and numerical investigation of reinforced slope using geotextile encased stone column

Nasiri, Masoud; Hajiazizi, Mohammad

doi:10.1080/19386362.2019.1651029

Cited by 12 publications

(3 citation statements)

References 18 publications

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“…For example, Liu et al [80] reported improvements in the stiffness of granitic residual soils, whereas other scholars have reported a decrease in strength [150], suggesting a variation in the behaviour of soils at different wetting and drying cycles. Additionally, detailed presentation on the preparation of cohesive beds, particularly on studies involving slope instability of embankments, is lacking, as evidenced elsewhere [151][152][153]. It is necessary that in such studies, the preparation of cohesive beds (stiff or soft) needs to be clarified, particularly where reinforcements or foundations are embedded into the slope.…”

Section: Applications Of Physical Model Tests In Slope Stability Studiesmentioning

confidence: 99%

“…Other studies using Geostudio include [12,57]. Rajabian and Viswanadham [90] used SLIDE software to supplement results obtained from centrifuge tests CM FDM Nasiri and Hajiazizi [153] investigated the performance of geotextile-encased stone columns on sandy embankments using the finite difference method. Likewise, centrifuge tests and FLAC 2D simulation were used to investigate the amplification effects and deformation conditions in a dormant loess-mudstone landslide [176].…”

Section: Numerical Approachesmentioning

confidence: 99%

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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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Section: Applications Of Physical Model Tests In Slope Stability Studiesmentioning

confidence: 99%

Section: Numerical Approachesmentioning

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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“…At the same time, they confirmed that the performance of piles carrying loads is related to time. Nasiri and Hajiazizi [12] discovered through experiments and the three-dimensional finite difference method that, compared to ordinary gravel piles, geo-encasement stone column increased the bearing capacity of slopes by 1.66 times and improved slope stability by 65.63%, also enhancing the safety factor. At the same time, it was found that while geo-encasement stone column increased the capacity to withstand bending failure, they did not significantly change the capacity to withstand shear failure.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Bearing Deformation Characteristics of Geo-encasement Stone Column under Embankment Load

2024

IJETC

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This paper uses FLAC3D software to establish a numerical model of unit cells below the embankment, studying the characteristics of pile-soil settlement and settlement difference under different parameters. The results show that the cohesion of the road embankment has a higher impact on the pile-soil settlement difference compared to the road embankment load and the friction angle of the embankment. When the cohesiveness of the road embankment is less than 10kPa, increasing the cohesiveness can reduce the pile-soil settlement difference; but when the cohesion of the road embankment is greater than 10 kPa, continuing to increase the cohesiveness has a negligible effect on reducing the pile-soil settlement. When the friction angle of the embankment is below 30°, increasing the friction angle of the embankment can significantly reduce the pile-soil settlement difference. However, when the friction angle is above 30°, continuing to raise the embankment friction angle results in minimal changes in the pile-soil settlement value and the pile-soil settlement difference.

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Landslide Mitigation Using Different Slope Stability Techniques - A Review

Arfin,

Abbas

2024

Springer Proceedings in Earth and Environmental Sciences

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An experimental and numerical investigation of reinforced slope using geotextile encased stone column

Cited by 12 publications

References 18 publications

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

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

Numerical Study of Bearing Deformation Characteristics of Geo-encasement Stone Column under Embankment Load

Landslide Mitigation Using Different Slope Stability Techniques - A Review

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