Extended Hyperbolic Model for Sand-to-Concrete Interfaces

Gómez, Jesús; Filz, George M.; Ebeling, Robert M.

doi:10.1061/(asce)1090-0241(2003)129:11(993)

Cited by 29 publications

(5 citation statements)

References 21 publications

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“…Based on these shear tests, researchers have informed attempts to establish theoretical and empirical shear strength criteria for the interface between geotechnical materials and structures (Gómez et al, 2003;Kosoglu et al, 2010;Kang and Liao, 2019;Kang et al, 2021). These include shear strength models for the interface between different rock types (Patton, 1966;Barton, 1973;Grasselli and Egger, 2003;Cottrell, 2009;Wu et al, 2018), rock and concrete (Andjelkovic et al, 2015;Krounis et al, 2016), soil and concrete (Gómez et al, 2003;Yazdani et al, 2019), and soil and geotextile (Esterhuizen et al, 2001;Iryo and Rowe, 2005;Tolooiyan et al, 2009;Portelinha and Zornberg, 2017). Due to the non-linear change in interfacial shear strength, new guidelines for shear model development consider the effect of the interface morphology on shear strength.…”

Section: Introductionmentioning

confidence: 99%

An Empirical Shear Model of Interface Between the Loess and Hipparion Red Clay in a Loess Landslide

Zhu

Shuaisheng

et al. 2022

Front. Earth Sci.

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Quaternary loess is widely distributed over the tertiary Hipparion red clay on the Loess Plateau of China. Large-scale loess landslides often occur along the weak contact interface between these two sediment materials. To investigate the failure mode and shear strength characteristics of the loess–Hipparion red clay contact interface, a series of shearing experiments were performed on interface specimens using purpose-built shear equipment. In this article, the relationship between shear strength and interface morphology is discussed, and an empirical shear model of the interface is proposed based on the experimental results and theoretical work. The results indicate that discontinuities between the loess and the Hipparion red clay reduce the shear strength of specimens significantly. The contribution of the contact interface to shear performance including failure mode, shear deformation, and shear strength varies with the interface morphology and the applied normal stress. With low interface roughness or normal stress, sliding failure is likely to occur. With increasing interface roughness and normal stress, the peak strength increases rapidly. With further increase in the interface roughness and normal stress, the increment of peak strength decreases gradually as the failure mode transitions from sliding mode to cutoff mode. A staged shear model that takes the failure mode into consideration is developed to express the non-linear change in the interface shear strength. The shear model’s capability is validated by comparing model estimates with experimental data. This work improves our understanding of shear mechanisms and the importance of considering the effects of interfacial properties in the mechanical behavior of contact interfaces.

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Section: Introductionmentioning

confidence: 99%

An Empirical Shear Model of Interface Between the Loess and Hipparion Red Clay in a Loess Landslide

Zhu

Shuaisheng

et al. 2022

Front. Earth Sci.

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“…Clough and Duncan [32] introduced a hyperbolic nonlinear elastic model to predict interfaces shear behavior. Gómez et al [33] improved the Clough and Duncan model for arbitrary stress path directions, while it does not incorporate a better formulation for the volumetric interface behavior. erefore, new models should be developed to model the important volumetric normal behavior of interfaces.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Shear Behavior of Interface between High Plastic Clay and Concrete

Zhu

et al. 2022

Advances in Materials Science and Engineering

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The Lianghekou earth core rockfill dam to be built in China will be the third highest rockfill dam in the world. This study presents the results of a series of direct shear tests between high plastic clay and concrete to study the shear behavior of contact clay-concrete cushion interface of Lianghekou dam. Results showed that water content and normal stress are significant factors affecting the shear behavior of the interface. The higher shear strength is related to lower water content and higher normal stress, and the shear strength can be formulated by the bifold-line type Mohr–Coulomb strength criterion. It is also found that the interface exhibits mainly two kinds of shear failure modes, that is, sliding failure along the concrete surface and shear failure in the clay matrix nearby the interface. Moreover, a nonlinear elastic model is proposed to simulate the shear behavior of the interface, of which parameters can be quickly estimated by water content. The simulation of the model is compared with the experimental results, and the results show that the model is reasonable and practical.

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“…Specifically, the effects of surface roughness, relative density, dilatancy angle, degree of saturation, particle size, normal stress, loading rate, cyclic load on the shearing behaviors at soil-structure interface were investigated by many researchers [11][12][13][14][15][16][17][18][19][20]. Within the framework of continuum mechanics, different constitutive models were proposed to model the interface shear behavior, such as the nonlinear elasticity model, elasto-plasticity model, damage model and two-surface plasticity model [21][22][23][24][25][26]. In order to numerically simulate the interface behavior, the interface finite element was developed, which includes three ingredients: a contact constraint scheme, a contact discretization method and a constitutive model [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Micro-mechanical analysis of soil–structure interface behavior under constant normal stiffness condition with DEM

et al. 2021

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The mechanical behavior at soil-structure interface (SSI) has a crucial influence on the safety and stability of geotechnical structures. However, the behavior of SSI under constant normal stiffness condition from micro to macro scale receives little attention. In this study, the frictional characteristics of SSI and the associated displacement localization under constant normal stiffness condition are investigated at both macro-and microscales by simulating a series of interface shear tests with discrete element method (DEM). The algorithm to achieve a constant normal stiffness is first developed. The macroscopic mechanical response of the interface shear tests with both loose and dense specimens at various normal stiffness is discussed in terms of shear stress, normal stress, vertical displacement, horizontal displacement and stress ratio. Then the microscopic behaviors and properties, including shear zone formation, localized void ratio, coordination number, force chains and soil fabric are investigated. The effect of normal stiffness is thus clarified at both macro-and microscales.

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Extended Hyperbolic Model for Sand-to-Concrete Interfaces

Cited by 29 publications

References 21 publications

An Empirical Shear Model of Interface Between the Loess and Hipparion Red Clay in a Loess Landslide

An Empirical Shear Model of Interface Between the Loess and Hipparion Red Clay in a Loess Landslide

Experimental Investigation on the Shear Behavior of Interface between High Plastic Clay and Concrete

Micro-mechanical analysis of soil–structure interface behavior under constant normal stiffness condition with DEM

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