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| 1 | An improved method to assess the required strength of cemented backfill in underground stopes with an open face显示文摘Backfill is increasingly used in underground mines to reduce the surface impact from the wastes produced by the mining operations. But the main objectives of backfilling are to improve ground stability and reduce ore dilution. To this end, the backfill in a stope must possess a minimum strength to remain self-standing during mining of an adjacent stope. This required strength is often estimated using a solution proposed by Mitchell and co-workers, which was based on a limit equilibrium analysis of a wedge exposed by the open face. In this paper, three dimensional numerical simulations have been performed to assess the behavior of the wedge model. A new limit equilibrium solution is proposed, based on the backfill displacements obtained from the simulations. Comparisons are made between the proposed solution and experimental and numerical modeling results. Compared with the previous solution, a better agreement is obtained between the new solution and experimental results for the required cohesion and factor of safety. For large scale(field) conditions, the results also show that the required strength obtained from the proposed solution corresponds quite well to the simulated backfill response. | Li Li Michel Aubertin | 2014 | International Journal of Mining Science and Technology2014，24，4： | 19 |
| 2 | Numerical simulations of water flow and contaminants transport near mining wastes disposed in a fractured rock mass显示文摘A numerical tool, called Hydro-Geosphere, was used to simulate unsaturated water flow and contaminants migration around an open pit filled with mining wastes. Numerical simulations had been carried out to assess the influence of various factors on water flow and solute transport in and around the surface openings including recharge, properties of the waste material and presence of fractures in the surrounding rock mass. The effect of the regional hydraulic gradient was also investigated. The analyses were conducted by simulating various 2D cases using experimentally obtained material properties and controlled boundary conditions. The effects of the hydrogeological properties of the filling material(i.e., water retention curve and hydraulic conductivity function), fracture network characteristics and conductivity of the joints were assessed. The results illustrate that fractures control water flow and contaminants transport around the waste disposal area. A fracture network can desaturate the system and improve the regional gradient effect. | Ben Abdelghani Farouk Aubertin Michel Simon Richard Therrien René | 2015 | International Journal of Mining Science and Technology2015，25，1： | 9 |
| 3 | Life cycle assessment of mine tailings management in Canada显示文摘 | Catherine Reid Valérie Bécaert Michel Aubertin Ralph K. Rosenbaum Louise Deschênes | 2008 | Journal of Cleaner Production2008，，4： | 1 |
| 4 | Life cycle assessment of mine tailings management in Canada 显示文摘 | Catherine Reid Valerie Becaert Michel Aubertin | 2009 | Journal of Cleaner Production2009，17，7： | 1 |
| 5 | Life cy- cle assessment of mine tailings management in Canada显示文摘 | Catherine Reid Val6rie B6caert Michel Aubertin | 2009 | Journal of Cleaner Production2009，17，7： | 1 |
| 6 | Life cycle assessment of mine railings management in Cana- da 显示文摘 | Catherine Reid Valerie Becaert Michel Aubertin | 2009 | Journal of Cleaner Production2009，17，7： | 1 |
| 7 | Life cycle assessment of mine tailings management in Canada显示文摘 | Catherine Reid Valérie Bécaert Michel Aubertin Ralph K. Rosenbaum Louise Deschênes | 2008 | Journal of Cleaner Production2008，，4： | 1 |
| 8 | Microstructural and geochemical evolution of paste tailings in surface disposal conditions显示文摘 | Thomas Deschamps Mostafa Benzaazoua Bruno Bussière Michel Aubertin Tikou Belem | 2007 | Minerals Engineering2007，，4： | 1 |
| 9 | Life cy- cle assessment of mine tailings management in Canada 显示文摘 | Catherine Reid Val6rie B6caert Michel Aubertin | 2009 | Journal of Cleaner Production2009，17，7： | 1 |
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