A finite–discrete element framework for the 3D modeling of geogrid–soil interaction under pullout loading conditions

Tran, Viet; Meguid, Mohamed A.; Chouinard, Luc

doi:10.1016/j.geotexmem.2013.01.003

Cited by 103 publications

(34 citation statements)

References 25 publications

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“…As a result, with both the simple run-out and the wrap around anchorage the contact forces tended globally to orientate diagonally as they initiated from the vertical wall above the anchor block and moved towards the horizontal part of the geosynthetic sheet and down to the lower part of the tank, as observed by Tran et al (2013) and Wang et al (2014).…”

Section: Contact Forces Into the Anchorage Benchmentioning

confidence: 86%

“…Although microscopic parameters of the bonded geosynthetic particles used to model the geosynthetic are determined using index load tests. Moreover, as a set of bonded particles are used to consider the continuous nature of the geosynthetic, the complex geosynthetic deformation may not be accurately considered in a pull-out test due to the inflexibility of the bonded particles (Tran et al 2013). Therefore, the strains and stresses within the geosynthetic may not be accurately obtained.…”

Section: Introductionmentioning

confidence: 99%

“…The coupling of the two methods can efficiently model the behaviour of the geosynthetic as well as the backfill soil material. This approach has been used by several researchers in geosynthetic-reinforced earth structures (Chareyre and Villard, 2005;Villard et al 2009;Tran et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Geosynthetics anchorage with wrap around: experimental and numerical studies

Lajevardi

Silvani

Dias

et al. 2015

Geosynthetics International

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Geosynthetics are used as reinforcing elements in a wide variety of structures: reinforced slopes and walls; embankments on soft soils; piled embankment; reinforcement in the base layers of railroad and road constructions; reinforced foundation mattresses; bridging of sinkholes or reinforced abutments. In some cases, these reinforced structures require anchorage areas. Designing the required dimensions of this anchorage remains problematic. This paper focuses on the simple run-out and wrap around anchorages. Laboratory tests, performed with these two anchorage benches, consisted of the pull-out of three geotextiles (uniaxial or biaxial with different stiffness) anchored following various geometries in different kinds of soil. In order to confirm and to complete the experimental studies presented in these anchorage systems, a specific two-dimensional discrete-element model has been used. The soil was described by discrete elements and the geosynthetic behaviour was taken into account by the use of thin finite elements. The interface behaviour between the soil particles and the geosynthetic elements was considered at each contact point by using a Coulomb contact law. The numerical model reproduced the experimental campaign and the anchorage mechanisms reasonably. The load transfer between the geosynthetic and soil was visualised by the force and displacements distribution along the geosynthetic sheet. The numerical procedure could also be used to define the conditions of stability for reinforced slopes or walls.

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Section: Contact Forces Into the Anchorage Benchmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

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Geosynthetics anchorage with wrap around: experimental and numerical studies

Lajevardi

Silvani

Dias

et al. 2015

Geosynthetics International

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“…Most commonly the DEM is coupled to the finite element method (FEM). Thereby, the structural elements are modelled as continuous solids and discretised with finite elements (Villard et al, 2009;Tran et al, 2013). The general framework for such multi-domain coupling between the DEM and FEM is well established (Oñate and Rojek, 2004) and also available with open-source codes (Str anský, 2013).…”

Section: Introductionmentioning

confidence: 99%

Modelling of deformable structures in the general framework of the discrete element method

Effeindzourou

Thoeni

Giacomini

et al. 2016

Geotextiles and Geomembranes

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“…The method was first proposed by Cundall and Strack [9] and was proven to be efficient in capturing the behavior of granular material. Tran et al [35] developed a finite-discrete element framework for the 3D modeling of geogrid-soil interaction under pullout loading condition. The results demonstrated the capability of the coupled model to analyse this class of soil-structure interaction problems.…”

mentioning

confidence: 99%