Deposition Modelling of High Density Tailings Using Smoothed Particle Hydrodynamics

Babaoglu, Yagmur

doi:10.22215/etd/2014-10722

Cited by 1 publication

(3 citation statements)

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“…where the material does not deform under a certain stress threshold (Babaoglu, 2014;Henriquez, 2009). However, more advanced rheological models have proven to be a better fit for a broader range of conditions (Mizani & Simms, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…Firstly, simulation of experimental data for bench scale studies will be carried out. This includes Newtonian (Cruchaga & al., 2007), Bingham (Gao & Fourie, 2018;Babaoglu, 2014;Henriquez & Simms, 2009), and thixotropic (Mizani, 2017) constitutive models.…”

Section: Objectivesmentioning

confidence: 99%

“…The deposition laboratory experiments were modelled successfully using smooth particle hydrodynamic (SPH) methodology (Babaoglu, 2014). The location of the free surface of this model will also be compared with MPM and physical results to further investigate the performance of MPM by comparing it to other common modeling tools.…”

Section: Bingham Rheologymentioning

confidence: 99%

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Field Scale Flow Modeling of Thixotropic Mine Tailings Using the Material Point Method

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Understanding free surface flow of mine tailings is necessary to plan deposition operations in tailings' storage facilities (TSF), and is important to predict the consequences of a dam break. Proper understanding of deposition operations has probably hindered adoption of alternative tailings technologies, wheras recent failures of tailings impoundments have had catastrophic consequences. Flow behavior is crucial to understand for effective risk mitigation. Tailings exhibit thixotropic properties-their behavior is a function of the material's stress history. A thixotropic constitutive model has been implemented into an open-source Material Point Method (MPM) framework. The results were validated with previous experimental data at laboratory scale and compared with Bingham rheology with good agreements. Large-scale simulations were done for 2D and 3D cases. The thixotropic model was able to model self-forming channels seen during field scale deposition, which Bingham rheology is unable to capture. Dam break events also scaled differently from laboratory scale experiments with thixotropy. This can possibly be an element that explains longer runouts then initially predicted with standard rheology.

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Section: Discussionmentioning

confidence: 99%