Effectiveness of filter gabions against slope failure due to heavy rainfall

Cho, May Than Thar; Chueasamat, Anusron; Hori, Toshikazu; Saito, Hirotaka; Kohgo, Yuji

doi:10.1016/j.sandf.2021.01.010

Cited by 13 publications

(3 citation statements)

References 14 publications

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“…Slope failure is considered as one of the high-risk geo-environmental hazards since it has potential to be harmful, resulting in the loss of human life and damage of properties (Gallage et al, 2021;Xue et al, 2016). Generally, various factors contribute to slope instability such as heavy rainfall (Cho et al, 2021;Yang & Zhang, 2024), earthquake or shift of stress condition (Taha et al, 2022). As the results, slope reinforcement is essential in order to mitigate slope failure due to those factors.…”

Section: Introductionmentioning

confidence: 99%

Stability Assessment of Root-Reinforced Slopes Using Finite Element Limit Analysis

Hutama,

Farichah

2024

jpensil

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Slope instability poses serious threats to infrastructure and environmental sustainability. As a result, numerous reinforcement techniques have been used as disaster mitigation attempts to prevent slope failure. Among various traditional slope reinforcement methods, the use of vegetion root is more cost-effective and environmentally friendly. This paper presents stability assessment of root-reinforced slopes. Firstly, slope models were built for case of bare and root-reinforced slopes. The slope angles were varied in the range of 15º ~ 55 º. The root cohesion and depth of root zone were adjusted within the ranges of 0 ~ 20 kPa and 0 ~1.5 m, respectively. The strength reduction finite element limit analysis method was applied to evaluate the stability of the slopes in this study. The results indicate that factor of safety increases with the increasing of root cohesion and depth of root zone. The best factor of safety was obtained for the case with root cohesion and depth of root zone of 20 kPa and 1.5 m, respectively. Shear dissipation contours of the slope models also show that root reinforcement reduces shear dissipation energy along the failure surface, consequently lowering the possibility of slope failure.

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Section: Introductionmentioning

confidence: 99%

Stability Assessment of Root-Reinforced Slopes Using Finite Element Limit Analysis

Hutama,

Farichah

2024

jpensil

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“…Double-twisted hexagonal meshes are made of aluminum-plated low carbon steel wire, which is used extensively in various protection systems as a key component, for example, against rock fall (Duffy et al 2005) and reinforced gabion walls (Quang et al 2009; Zhang et al 2007). Gabion walls are a proven construction solution with established results in slope and hydraulic applications (Cho et al 2021; Srineash and Murali 2015). The meshes are the main components of gabion walls (Fig.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional finite element modeling of double-twisted hexagonal mesh

Li,

Wu,

2024

J Braz. Soc. Mech. Sci. Eng.

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The mesh structure based on double-twisted hexagonal grids is an important part of reinforced gabion structures. Due to challenges in sensor placement during physical experimentation on complex gabion mesh mechanical properties, numerical simulation serves as a valuable means of study, with accurate numerical grids being integral to obtaining reasonable results. This article proposes a novel approach for constructing a numerical model that incorporates unique geometric features. The approach categorizes mesh wire types into three groups based on their geometric structure and presents a relational equation governing the motion of a single wire axis during manufacturing. Secondly, A three-dimensional nite element model of a double-twisted hexagonal mesh was constructed using ABAQUS software to simulate a quasi-static uniaxial tensile experiment. Finally, the proposed approach was validated by comparing its numerical and experimental results, supporting its rationality. Additionally, it addresses the limited availability of three-dimensional numerical models for gabion meshes, thereby offering potential for further research on the mechanical properties of gabion structures under complex working conditions.

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“…Nishold et al [ 19 ] used a physical model to assess the use of a geo-tube with gabions in coastal protection and then used it to defend the shore. Cho et al [ 20 ] conducted model tests on the slope, examining the damage caused by heavy rain by placing gabions and drainage materials at the slope’s toe. This study found that preventing the diving surface on the slope surface is critical.…”

Section: Introductionmentioning

confidence: 99%

Safety Risk Analysis of a New Design of Basalt Fiber Gabion Slope Based on Improved 3D Discrete Element Method and Monitoring Data

Dai

Yang

et al. 2022

Sensors

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Gabion has been extensively used in retaining walls and slope protection. This study carries out a safety risk analysis of a new structure combining basalt fiber reinforcement (BFR) and the traditional gabion structure. The micro-parameters of BFR and soil were calibrated by using the 3D discrete element method after the tensile test of BFR was completed. The mechanical property of the gabion unit was investigated by using a refined model and a numerical test of uniaxial compression. This work developed a simplified method to simulate the seepage effect. The stress condition and sliding displacement between gabions were also investigated. Deformation, stress, and porosity were all used to evaluate the stability of the new type of gabion slope. According to this study, BFR has a tensile strength of 68.22 MPa, and the safety factor increased by 25.68% after using these BFR gabions. The damage is mainly manifested by bending the BFRs and the dislocation of the gabion units, as the slope does not slip. It is indicated this novel gabion structure has a lower safety risk compared to traditional ones, and thus can be popularized and used in retaining walls and slope protection.

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Effectiveness of filter gabions against slope failure due to heavy rainfall

Cited by 13 publications

References 14 publications

Stability Assessment of Root-Reinforced Slopes Using Finite Element Limit Analysis

Stability Assessment of Root-Reinforced Slopes Using Finite Element Limit Analysis

Three-dimensional finite element modeling of double-twisted hexagonal mesh

Safety Risk Analysis of a New Design of Basalt Fiber Gabion Slope Based on Improved 3D Discrete Element Method and Monitoring Data

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