High Density Thickened Tailings Transport by Gravity

Pornillos, Emmanuel; Loayza, Cesar; Cabrejos, Juan

doi:10.36487/acg_repo/963_27

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effect of the yield stress, the slurry density, flow rate, and bedding inclination angle on the flow profile was investigated. The results of the tests were presented elsewhere (Pornillos et al, 2009). The flume used was approximately 3.5 m long, 0.16 m wide and 0.165 m deep with an adjustable inclined bedding support.…”

Section: Dynamic Flume Test Flow Profilesmentioning

confidence: 99%

Prediction of tailings beach slopes and tailings flow profiles

Li¹

2011

Proceedings of the 14th International Seminar on Paste and Thickened Tailings

View full text Add to dashboard Cite

Thickened and paste tailings disposal can provide a viable means to conserve water and reduce the risks associated with large volumes of water stored on the surface of tailings storage facilities. Thickened tailings deposition is a fast growing technology in the mining industry for both environmental and long term economical considerations. For surface deposition, the required beach slope and the tailings rheological properties often dictate the thickening process. The tailings beach slope is a key parameter in deposition requirements, which governs the storage capacity and the footprint of tailings management facilities. Prediction of the beach slope is fundamental for the design of non-segregating tailings stacks. But the existing tailings beach predictive models are not sufficiently developed as industrial standard applications. This paper presents a tailings deposition model and development of an analytical tool for prediction of tailings beach slopes. Dynamic profiles of tailings flows are also discussed. The mechanisms of tailings deposition and evolution of tailings beach slopes are investigated from both geotechnical and hydraulic engineering perspectives. The model is developed based on solid mechanics and fluid mechanics principles satisfying limit equilibrium conditions and energy conservation. The governing differential equations can be solved using a numerical technique and the solution scheme can readily be implemented in Fortran or other computer language. A design tool is developed using a Fortran code (BSLOPE), which takes into account rheological properties of tailings, operation parameters and site topographic conditions. The required properties of the tailings for beach slope predictions can be determined through laboratory testing and refined during operation. Case studies demonstrate that the modelling results are in agreement with field measurements. A sensitivity study was carried out to investigate the effects of the yield stress and discharge rate on the beach slope.

show abstract

Section: Dynamic Flume Test Flow Profilesmentioning

confidence: 99%

Prediction of tailings beach slopes and tailings flow profiles

Li¹

2011

Proceedings of the 14th International Seminar on Paste and Thickened Tailings

View full text Add to dashboard Cite

show abstract

High Density Thickened Tailings Transport by Gravity

Cited by 1 publication

References 0 publications

Prediction of tailings beach slopes and tailings flow profiles

Prediction of tailings beach slopes and tailings flow profiles

Contact Info

Product

Resources

About