Full-scale mechanically stabilized earth (MSE) walls under strip footing load

Ahmadi, Hamzeh; Bezuijen, Adam

doi:10.1016/j.geotexmem.2017.12.002

Cited by 57 publications

(24 citation statements)

References 31 publications

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“…As indicated in Fig. 2, with the difference in vantage points for the adopted procedures in mind, the results of the current FELA formulation are in satisfactorily good agreement, following a similar trend under all surcharge loads (q = 50, 150 and 300 kPa), with the experimental data presented by Ahmadi and Bezuijen (2018). In other words, consistent with fundamental theories of soil mechanics, the lateral earth pressure in the active state is lower than those in the service load condition.…”

Section: Verificationsupporting

confidence: 80%

“…The results of a full-scale model test conducted by Ahmadi and Bezuijen (2018) are utilized herein in order to validate the adopted formulations and performed analyses in the course of this study. In their study, the effects of various load intensities were examined on the lateral earth pressure distribution behind the model reinforced retaining structure.…”

Section: Verificationmentioning

confidence: 99%

“…Very few studies have been performed on the influence of strip footing local loading on the stability of geosynthetic-reinforced retaining walls, most of which have focused solely on case studies and service loads (Singh and Basudhar 1993;Adams 1997;Gotteland et al 1997;Ketchart and Wu 1997;Haza et al 2000;Wu et al 2001;Abu-Hejleh et al 2002;Lee and Wu 2004;Adams et al 2011;Bourgeois et al 2011;Ahmadi and Hajialilue-Bonab 2012;Bathurst 2015, 2019;Xiao et al 2016;Ardah et al 2017;Talebi et al 2017;Ahmadi and Bezuijen 2018;Zornberg et al 2019;Rahmaninezhad 2019;Xie et al 2019;Rahmaninezhad et al 2020;Bathurst 2020). In an analytical and experimental study conducted by Ahmadi and Bezuijen (2018), the influence of facing panel rigidity, base restriction and surface strip loading on the lateral deflection of the walls stabilized with geogrid layers was investigated using the results of fullscale model tests. Xie et al (2019) attempted to assess the ultimate bearing capacity of a surface footing accounting for various multiple failure mechanisms of the underlying geosynthetic-reinforced soil structure.…”

Section: Introductionmentioning

confidence: 99%

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Limit Analysis of Lateral Earth Pressure on Geosynthetic-Reinforced Retaining Structures Subjected to Strip Footing Loading Using Finite Element and Second-Order Cone Programming

Mirmoazen

Lajevardi

Mirhosseini

et al. 2021

Iran J Sci Technol Trans Civ Eng

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Stability of reinforced retaining structures under a variety of surficial loadings is of particular significance in geotechnical engineering practice. In the current study, adopting the well-established lower-bound limit analysis in conjunction with the finite element discretization method and second-order cone programming, a rigorous numerical study is carried out to evaluate the active lateral earth pressure on geosynthetic-reinforced retaining walls subjected to overlying strip footing loadings. The significant influence of the length (L e ) and number (n) of reinforcement layers, load intensity (q), width of strip footing (B) and its distance from the wall (a) on the lateral earth pressure is examined. It is shown that using reinforcements longer than a specific length fails to have any further significant contributions to the wall stability. With the increase in load intensity and width of the strip footing, the reinforcements are found to be further effectual in reducing the rate of increase in the value of active earth pressure coefficient. Moreover, the reinforcements are observed to be more effective in enhancing the rate of decrease in the earth pressure coefficient with the increase in the foundation-wall distance, up to a threshold value, beyond which they show the reverse influence.Keywords Lateral earth pressure • Geosynthetic-reinforced wall • Lower-bound • Finite element limit analysis (FELA) • Second-order cone programming (SOCP)

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Section: Verificationsupporting

confidence: 80%

Section: Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Limit Analysis of Lateral Earth Pressure on Geosynthetic-Reinforced Retaining Structures Subjected to Strip Footing Loading Using Finite Element and Second-Order Cone Programming

Mirmoazen

Lajevardi

Mirhosseini

et al. 2021

Iran J Sci Technol Trans Civ Eng

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“…In research (Sadat, Huang, Bin-Shafique, & Rezaeimalek, 2018) the maximum increase in strain for each reinforcement layer occurred in the plane (45 ° + φ / 2), and the lower layer had the greatest increase in strain among all reinforcement layers. While the maximum stress is in the L is the length of reinforcement e is the eccentricity of forces uppermost reinforcement layer just below the load placement (Ahmadi & Bezuijen, 2018).…”

Section: Figure 2 2 Rankine Landslide Shapementioning

confidence: 99%

Study of Behavior Mechanically Stabilized Earth Wall (Mse-Wall) With Sand on the Model Test in the Laboratory

Noor

2021

CERUCUK

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Different types of field conditions coupled with rapid technological developments gave birth to innovations in the construction of retaining walls. One type of landslide deterrence construction that began to be developed in Indonesia is the Mechanically Stabilized Earth Wall or often called the MSE wall. The main components of the MSE wall are backfill material, lateral reinforcement and facing panel. In this final project, research will be conducted to observe the behavior of MSE wall systems on a laboratory scale.The study was conducted by planning the innovation of the facing panel form and the variation in the number of reinforcement layers. The variations of reinforcement are 1 layer, 2 layers, 3 layers, 4 layers and without reinforcement. The reinforcement used is sack as a substitute for geotextile woven with selected pile material is sand. In testing the prototype of the MSE wall, a dial gauge is used to find out the deformation, while for loading it uses a jack-push tool.From these tests, the data obtained in the form of shifts, lateral stresses, and the maximum load of the results of the study showed that the application of reinforcement can affect the amount of lateral stress, shifting, and load. The minimum lateral stress is 0.023 kg/cm2 and the maximum load that can be held by the MSE wall is 75 kg.

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“…Ahmadi and Bezuijen [25] considered this apparent cohesion for numerical analysis. They showed that by taking into account this apparent cohesion also there is good agreement between the full scale test results and Plaxis 2D analysis.…”

Section: Introductionmentioning

confidence: 99%

Different Loading Systems for Reinforced Earth Walls under Strip Footing Load

Ahmadi¹,

Bezuijen²

2017

Proceedings of the 2nd World Congress on Civil, Structural, and Environmental Engineering

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-In this paper the behavior of reinforced earth walls with rigid and flexible faces under strip footing load was studied by numerical analysis. In one numerical model the strip footing load was free to have horizontal and vertical movements and in another the horizontal movement of the strip footing load was restricted. By considering these two different models, the results of 2D and 3D numerical analysis (Plaxis) were compared with the full scale test results about the horizontal earth pressures, lateral wall deflections and consequently maximum tensile force on reinforcement layers. For modeling the compaction loads in each layer two equal distributed loads were considered in the top and bottom of each soil layer and also the influence of sidewall friction was studied in a 3D numerical analysis. Results showed that there is good agreement between 3D numerical analysis and full scale test results by considering the horizontal restriction for the strip footing load.

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Full-scale mechanically stabilized earth (MSE) walls under strip footing load

Cited by 57 publications

References 31 publications

Limit Analysis of Lateral Earth Pressure on Geosynthetic-Reinforced Retaining Structures Subjected to Strip Footing Loading Using Finite Element and Second-Order Cone Programming

Limit Analysis of Lateral Earth Pressure on Geosynthetic-Reinforced Retaining Structures Subjected to Strip Footing Loading Using Finite Element and Second-Order Cone Programming

Study of Behavior Mechanically Stabilized Earth Wall (Mse-Wall) With Sand on the Model Test in the Laboratory

Different Loading Systems for Reinforced Earth Walls under Strip Footing Load

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