Finite Element Analysis of Slope Stability Reinforced with Pile

Taleb, Hosni Abderrahmane; Berga, Abdelmadjid

doi:10.15866/irece.v8i1.11147

Cited by 5 publications

(5 citation statements)

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“…In addition, several studies have been concerned with the use of the dune sand as a stabilization addition of expansive clay [26] and in high performance-high strength concrete manufacturing [27]. Also, the determination of the mechanical behaviour and associated parameters acts as data entries in numerical modelling of geotechnical problems [28].…”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Size and Distribution on Mechanical Behavior of Dune Sand

Boudia

Berga

2021

Civ Eng J

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Sand is a major component of soils. It is widely used in manufacturing and construction. In geomechanics, one characterizes sand according to various aims. This paper investigates, for local sands, the effect of grain size and granular distribution on the mechanical behavior in terms of strength and stress-strain relationship. For this purpose, dune sands of the great Occidental Erg, from Algeria, are analyzed, according to the Mohr-Coulomb criterion. The study uses three kinds of sands. Every kind is divided into three sizes classes. Then, the experimental program conducts a set of direct shear tests, under various vertical stresses, using the small shear box (60 × 60 mm). The results show that the particle size and distribution have a direct effect on the mechanical behavior of the dune sand. Then, the dominant size class governs the natural sand behavior. Moreover, the peak shear strength increases as particle size increases. This indicates that there is an increase in peak friction angle with the increase of particles size and the sands consider as a purely cohesionless material. In addition, the experimental analysis shows that density and confinement stress is not sufficient to interpret the mechanical behavior. Indeed, mineralogy and surface state can influence the shear strength. These conclusions lead to the relevance of the sand genesis and the importance of the local materials thematic. Doi: 10.28991/cej-2021-03091730 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Effect of Grain Size and Distribution on Mechanical Behavior of Dune Sand

Boudia

Berga

2021

Civ Eng J

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“…The initial source code for utilizing the SRM for slope stability research was released by Smith et al, (1982). And following that, a number of researchers used this technique, including: (Naylor, 1982;Ugai, 1989;Cheng et al, 2007;Tschuchnigg et al, 2015;Sazzad et al, 2017;Chatterjee et al, (2018); Kazemian et al, 2019;and Sourav et al, 2021), The following authors have reviewed this technique by: Duncan (1996); Griffiths et al (1999);and Taleb et al (2017). When utilizing FEM to analyze slope stability, the Mohr Coulomb failure criterion (equation 2), is often used to apply the shear strength reduction approach.…”

Section: Limit Analysismentioning

confidence: 99%

“…Many failures include factors such as streaming, erosion, man-made slopes, slope height, slope angle, soil qualities, hydraulic properties, etc. that make stable-slope situations transition to unstable ones (Taleb et al, 2017). One of these problems is the fault that we will study in this research.…”

Section: Introductionmentioning

confidence: 99%

Assessment of slope stability with study parametric of faults (shear joints) using the lower and upper limit analysis method

Taleb,

Guemidi,

Said

2024

SEES

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Slope instability is widespread throughout the world, has become well known to geotechnical engineers, and poses a major challenge. The causes of slope slippage vary, which is why it is considered important and dangerous. Until now, researchers are trying to understand this phenomenon and the extent to which it is affected by surrounding elements, such as the slope ratio, slope height, water level, soil properties, and other physical and chemical properties. In this research, we will discuss one of the characteristics, which is the presence of cracks on slopes. The presence of combined shear on slopes poses a challenge to geotechnical engineers to determine field mechanical parameters, analyze, and study these slopes. In this research, we studied the effect of faulting on slopes. We changed the crack in the slope in five cases, and in each case we changed the length of the crack (21.5 m, 16.2 m, 11.2 m, 7.5 m, 3.5 m) and its location (five places) in order to understand a fracture. Slope behavior as a result of the effect of crack length and location on the safety factor, failure of the slope surface, and deformations of this slope using the top and bottom analysis method. This study provides valuable insights into the effects of fault zones on slope stability using OptumG2 software. It is helpful for us to use these results to better understand slope sliding, and from this, we can reduce the risk of sliding in areas where cracked soil is present.

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“…Currently, the focus is on the pile's behavior, more particularly, the use of frictional contact in the interfaces modeling. In this regard, a significant number of works have been published, the majority of which have adopted Coulomb's frictional contact model [10][11][12].…”

Section: Introductionmentioning

confidence: 99%