Influence of the strip–backfill interaction model in the analysis of the behavior of a mechanically stabilized earth wall

Bourgeois, Emmanuel; Kouby, Alain Le; Soyez, Laurent

doi:10.1016/j.sandf.2012.05.012

Cited by 10 publications

(12 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Contrary to what was done in the static case in [13], it was not needed to model the interface between facing and embankment backfill, because only incremental displacements under dynamic loading are investigated and they do not imply differential settlement between facing and embankment.…”

Section: Materials Propertiesmentioning

confidence: 99%

“…The other material parameters are taken from [13] and [21] and given in Table 4: Damping has been taken into consideration in the computation using Rayleigh model [26]: the global damping matrix is a linear combination of the global mass matrix (with coefficient ), and the global stiffness matrix (with coefficient β). Then the whole structure has the same damping coefficient.…”

Section: Materials Propertiesmentioning

confidence: 99%

“…The full model allows also considering failure criteria, which will not be used here, as it is chosen to perform the full numerical analysis in the elastic domain. The full description of this model is available in [13].…”

Section: Reinforcement Modelmentioning

confidence: 99%

“…From a numerical point of view, special attention has been paid to develop good practices in modeling MSE walls, using finite elements models (for example [12], [13]) or finite differences models [14] as well, under several static loading conditions, or to model pull-out tests.…”

Section: Introductionmentioning

confidence: 99%

“…The experimental setup and some of the results have been presented in [21], and static analyses can be found in [12], [13]. This article sets the focus on the results obtained for strips #36 and #46 as shown in Figure 3 under the names of A36 and A46.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Dynamic behavior of a Mechanically Stabilized Earth wall under harmonic loading: Experimental characterization and 3D finite elements model

Payeur

Corfdir

Bourgeois³

2015

Computers and Geotechnics

Self Cite

View full text Add to dashboard Cite

Dynamic behavior of a Mechanically Stabilized Earth wall under harmonic loading: Experimental characterization and 3D finite elements model. Computers and Geotechnics, Elsevier, 2015, 65, pp.199 -211. 10.1016/j.compgeo.2014 Computers and Geotechnics, 65, 199-211. doi:10.1016/j.compgeo.2014.12.001 2 AbstractThis article presents an analysis of a full-scale experimental Mechanically Stabilized Earth (MSE) wall under harmonic loading. Experimental results are shown and discussed, and compared with 3D finite element simulations. The experimental results indicate that the embankment behavior is linear, and that the displacements of the wall, the tensile forces in the reinforcements, and the stresses in the backfill material are strongly frequency-dependent. The numerical analysis is performed in the time domain with Rayleigh damping and includes special modeling strategies to represent the facing, the ground-reinforcement interface and the overburden pressure. Experimental and numerical values are found to be in good agreement.3

show abstract

Section: Materials Propertiesmentioning

confidence: 99%

Section: Materials Propertiesmentioning

confidence: 99%

Section: Reinforcement Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dynamic behavior of a Mechanically Stabilized Earth wall under harmonic loading: Experimental characterization and 3D finite elements model

Payeur

Corfdir

Bourgeois³

2015

Computers and Geotechnics

Self Cite

View full text Add to dashboard Cite

show abstract

Numerical simulation of the response of a reinforced wall to a high speed train passage

Corfdir

Bourgeois²,

Payeur

2017

Int. J. Numer. Anal. Meth. Geomech.

View full text Add to dashboard Cite

The dynamic response of a mechanically stabilized earth wall to the passing of a high-speed train is modelled using the finite element method. A three-dimensional analysis is carried out, using a specific framework that allows performing the analysis with a moderate computational effort. In the first place, a so-called multiphase approach is used to take into account the reinforcing strips. The moving load is taken into account by performing the calculation in a mobile referential using the properties of symmetry of the train cars and a simplifying assumption of periodicity for the whole train. We also assume a steady state. A partial validation of the approach is obtained by means of a comparison with an analytical solution. The quick increase in displacements induced by the train passing when the speed comes close to the celerity of Rayleigh waves clearly appears in the results. The vertical displacements, vertical stresses in the backfill,tensile forces in the strips and the influence of the stiffness of the soil are discussed.La réponse dynamique d'un mur en sol renforcé au passage d'un train à grande vitesse est modélisée par éléments finis. Une analyse tridimensionnelle est effectuée, dans un cadre spécifique qui permet de faire le calcul pour un cout de calcul acceptable : d'une part, on utilise le modèle multiphasique pour prendre en compte les armatures ; d'autre part, on prend en compte le déplacement de la charge en effectuant le calcul dans un référentiel mobile ; enfin on tire parti des propriétés de symétrie des voitures et on fait une hypothèse simplificatrice de périodicité du train. On fait de plus l'hypothèse que l'on a atteint un régime permanent. Une validation partielle est obtenue par comparaison avec une solution analytique. L'augmentation des déplacements induits par le passage du train lorsque sa vitesse s'approche de la célérité des ondes de Rayleigh apparait clairement dans les résultats. Les déplacements verticaux, les contraintes verticales dans le remblai, les efforts de traction dans les armatures et l'influence de la raideur du remblai sont discutées

show abstract

3D modelling of strip reinforced MSE walls

et al. 2020

View full text Add to dashboard Cite

This paper reports the results of 3D numerical modelling of a 6-m-high mechanically stabilised earth (MSE) wall constructed with concrete panels and steel or polymeric strip reinforcement. These systems pose numerical challenges as a result of the discontinuous reinforcement arrangement which is not the case for MSE walls constructed with continuous reinforcement layer configurations. Details of the numerical approach including modelling of the reinforcement strips, concrete facing panels and compressible bearing pads between panels are described. Examples of numerical predictions for facing deformations, toe loads due to soil down-drag behind the panels, soil and reinforcement settlements, and reinforcement tensile loads are presented. The influence of reinforcement stiffness is demonstrated by comparing numerical predictions for the same MSE wall with relatively inextensible steel strips and with relatively extensible polymeric strips. Of particular interest are the results showing the disruption of earth pressures along vertical and horizontal planes in the reinforced soil zone as a result of the discontinuous strip inclusions, and the vertical load that accumulates on the reinforcement strips close to the connections due to soil settlement behind the facing. The details of the modelling approach used here and the lessons learned provide a benchmark for future similar lines of investigation and for practitioners, particularly as the computational power of desktop computers continues to increase. Keywords 3D modelling Á Finite element modelling Á Mechanically stabilised earth (MSE) walls Á Polymeric strip reinforcement Á Soil retaining walls Á Steel strip reinforcement Electronic supplementary material The online version of this article (

show abstract

Influence of the strip–backfill interaction model in the analysis of the behavior of a mechanically stabilized earth wall

Cited by 10 publications

References 13 publications

Dynamic behavior of a Mechanically Stabilized Earth wall under harmonic loading: Experimental characterization and 3D finite elements model

Dynamic behavior of a Mechanically Stabilized Earth wall under harmonic loading: Experimental characterization and 3D finite elements model

Numerical simulation of the response of a reinforced wall to a high speed train passage

3D modelling of strip reinforced MSE walls

Contact Info

Product

Resources

About