3D bolted cohesive element for the modelling of bolt-reinforced rough rock-shotcrete interfaces

Dong, Xiangjian; Karrech, Ali; Elchalakani, Mohamed; Qi, Chongchong; Manca, Mirko

doi:10.1016/j.compgeo.2020.103659

Cited by 9 publications

(1 citation statement)

References 35 publications

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“…Renaud et al [44] used finite element modeling to conduct 3D simulations of direct shear tests of unbonded and naturally rough concrete-rock interfaces with an explicit representation of the topography of the interface. Dong et al [45] presented a 3D numerical modeling that captures the behavior of rock bolts and shotcrete-rock interfaces. Dong et al [46] proposed a softening constitutive law for concrete-rock interfaces and investigated the crack propagation along with this interface.…”

Section: Introductionmentioning

confidence: 99%

Influence of Concrete–Rock Bonds and Roughness on the Shear Behavior of Concrete–Rock Interfaces under Low Normal Loading, Experimental and Numerical Analysis

et al. 2022

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Direct shear tests were performed to study the influence of concrete–rock bonds and roughness on the shear behavior of concrete–rock interfaces. The results of these tests show that the shear behavior of concrete–hardrock interfaces depends on the micro-roughness driving the formation of strong concrete–rock bonds and on the macro-roughness accounting for the influence of the surfaces interlocking. Based on this outcome and recent literature, a cohesive frictional model is used to simulate direct shear tests of bonded concrete–granite interfaces with the explicit representation of naturally rough interfaces. The results of these simulations show that the model has good prediction capability compared to the experimental results, opening up the pathway to numerically based robust statistical analysis.

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Section: Introductionmentioning

confidence: 99%