Study of Slope Stability Using the Bishop Slice Method: An Approach Combining Analytical and Numerical Analyses

Agbelele, Koffi Judicael; Adeoti, Guy Oyeniran; Agossou, Daniel Yémalin; Aïsse, Gérard Gbaguidi

doi:10.4236/ojapps.2023.138115

OJAppS

2023

DOI: 10.4236/ojapps.2023.138115

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Study of Slope Stability Using the Bishop Slice Method: An Approach Combining Analytical and Numerical Analyses

Koffi Judicael Agbelele,

Guy Oyeniran Adeoti,

Daniel Yémalin Agossou

et al.

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Cited by 3 publications

References 43 publications

(39 reference statements)

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Critical Assessment of Slope Stability: A Case Study on the Toffo-Lalo Road Project

Adeoti,

Agbelele,

Yabi

et al. 2023

MME

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This article systematically delves into a comprehensive analysis of the latest and most advanced techniques for the assessment of slope stability. It particularly focuses on strategies aimed at enhancing slope stability in road construction. In addition to this analysis, the article presents an illustrative case study centered on the Toffo-Lalo Road Project. The core objective of this paper is to scrutinize the stability of large embankments in road construction, with a specific emphasis on the development and asphalt overlay of the Toffo-Lalo road. This scrutiny is conducted through the utilization of stability calculation software, GEOSTUDIO2018, specifically its SLOPE/W module. Within this framework, a detailed model of the cutbank located at KP1+750-2+250 was meticulously developed. This model takes into account the physical-mechanical characteristics of the soil at the site, as well as the topographic layout. Its attributes include a cohesion value of 11.3 Kpa, a density of 16.57 KN/m 3 , and a friction angle of 27˚. The modeling results, employing the Morgenstern-Price method-an approach renowned for its adherence to equilibrium conditions and provision of precise results-conclude that the safety coefficient (Fs = 1.429) prior to any reinforcement signifies a critical state of slope stability. To address this, the article explores the implementation of reinforcement techniques, particularly focusing on rigid inclusions like nailing and piles. The modeling exercises reveal a noteworthy enhancement in the safety coefficient (Fs) post-reinforcement. Furthermore, the article undertakes a parametric study to optimize the reinforcement strategies. This analysis highlights that anchoring at 0˚ downward relative to the horizontal plane and employing a pile angle of 90˚ represent the most favorable approaches. These measures yield safety coefficients of 3.60 and 2.34, respectively, indicating substantially improved slope stability.

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Critical Assessment of Slope Stability: A Case Study on the Toffo-Lalo Road Project

Adeoti,

Agbelele,

Yabi

et al. 2023

MME

View full text Add to dashboard Cite

show abstract

Strategies for Advancing Road Construction Slope Stability: Unveiling Innovative Techniques for Managing Unstable Terrain

Adeoti,

Agbelele,

Yabi

et al. 2023

OJCE

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This comprehensive review paper explores various aspects of geotechnical engineering, with a focus on the management of unstable terrains, numerical methods for solving complex soil and consolidation problems, rheological analysis of suspensions and muddy soils, and stability analysis of slopes. It begins by examining the unique physicochemical properties of cohesive sediments, including cohesion and specific surface area. The temporal evolution of deposit concentration and average bed concentration in unstable terrains is discussed, along with settling behavior of isolated particles and hindered settling using empirical equations. Key sedimentation theories, such as Kynch's theory, and geotechnical consolidation theories, including Terzaghi's consolidation equation and Gibson's theory, are presented. The investigation interrelates these theories and principles to offer a holistic view of managing unstable terrains. It also addresses the challenges associated with experimental determination of constitutive relationships and presents alternative simplification methods proposed by researchers. Additionally, it delves into numerical methods for solving nonlinear partial differential equations governing soil behavior, emphasizing the need for numerical frameworks and discussing various techniques and associated challenges. The rheological analysis section covers material flow behavior, rheological behavior models, and the rheological properties of water and cohesive sediment mixtures. Fundamental geotechnical calculations, constitutive laws, and failure criteria are explained, highlighting their relevance in geotechnical engineering applications. This paper provides a multidimensional perspective on geotechnical engineering, offering valuable insights into soil properties, consolidation processes, nu-How to cite this paper: Adeoti, G.O.,

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Analysis by Numerical Simulation of the Stabilization of Slope Sites under Building Loads

Mushengezi,

Mikerego,

Kasanda

2024

OJCE

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Study of Slope Stability Using the Bishop Slice Method: An Approach Combining Analytical and Numerical Analyses

Cited by 3 publications

References 43 publications

Critical Assessment of Slope Stability: A Case Study on the Toffo-Lalo Road Project

Critical Assessment of Slope Stability: A Case Study on the Toffo-Lalo Road Project

Strategies for Advancing Road Construction Slope Stability: Unveiling Innovative Techniques for Managing Unstable Terrain

Analysis by Numerical Simulation of the Stabilization of Slope Sites under Building Loads

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