Farouk Ben Abdelghani, Michel Aubertin
, Richard Simon et René Therrien
Article de revue (2015)
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Abstract
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.
Mots clés
Hydro-Geosphere, Numerical modelling, Unsaturated water flow, Contaminants transport, Tailings, Waste rocks
| Sujet(s): |
1000 Génie civil > 1000 Génie civil 1000 Génie civil > 1005 Génie hydraulique 1000 Génie civil > 1007 Ressources et approvisionnement en eau |
|---|---|
| Département: | Département des génies civil, géologique et des mines |
| Centre de recherche: | Autre |
| Organismes subventionnaires: | CRSNG/NSERC, Research Institute on Mines and the Environment (RIME UQAT-Polytechnique) |
| URL de PolyPublie: | https://publications.polymtl.ca/4778/ |
| Titre de la revue: | International Journal of Mining Science and Technology (vol. 25, no 1) |
| Maison d'édition: | Elsevier |
| DOI: | 10.1016/j.ijmst.2014.11.003 |
| URL officielle: | https://doi.org/10.1016/j.ijmst.2014.11.003 |
| Date du dépôt: | 14 juil. 2021 11:11 |
| Dernière modification: | 07 avr. 2024 06:34 |
| Citer en APA 7: | Ben Abdelghani, F., Aubertin, M., Simon, R., & Therrien, R. (2015). Numerical simulations of water flow and contaminants transport near mining wastes disposed in a fractured rock mass. International Journal of Mining Science and Technology, 25(1), 37-45. https://doi.org/10.1016/j.ijmst.2014.11.003 |
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