A novel approach for modelling water quality at mine closure
Pourquoi ce travail est dans la base
Une base qui oublie comment elle a trouvé un travail ne peut pas être vérifiée. Voici les voies qui ont admis celui-ci.
Notice bibliographique
Résumé
Diavik Diamond Mines Inc (DDMI) is located in the diamond-rich Lac de Gras region in the Northwest Territories, Canada. DDMI has mined diamonds from three relatively narrow open pits with connecting underground mine tunnels that extend several hundred metres below Lac de Gras. During mine closure, the open pits will be refilled with Lac de Gras water and reconnected to the lake by breaching the dykes around the pit lakes to restore fish habitat. As well as accommodating ongoing mine-affected site runoff, groundwater and pit wall leachate, one of these pits will be used to dispose of process kimberlite (PK) which will release porewater for several hundred years after mine closure. Given the complexity of these subsurface pit lakes, interconnected mine tunnels, consolidating PK and lake hydrodynamics, demonstrating the suitability of water quality and the stability of chemoclines in pit lakes is required to meet closure criteria and obtain regulatory approvals. Regulatory requirements include demonstrating that the proposed closure plan would meet the following objectives: Water quality in the pit lakes and receiving environment allows for current and future water uses. Waste is prevented and/or minimised. The amount of waste to be deposited to the receiving environment is minimised (i.e. there is longterm chemocline/thermocline stability within the pit lakes to demonstrate long-term stratification) Lake water volumes used to fill the pit lakes do not adversely affect flow in the downstream environment. While quantifying the potential effects of closure under varying conditions is critical to obtaining regulatory approvals, sufficiently sophisticated modelling platforms to simulate the hydrodynamic, thermodynamic and water quality effects of closure conditions in such expansive and complex morphological systems within a reasonable time frame are not available. A lack of suitable modelling approaches was demonstrated through extensive testing of various modelling platforms. To balance the regulatory expectations for robust demonstration of proposed closure solutions, a new modelling approach was required. To be able to accurately estimate water quality, a comprehensive 3D hydrodynamic model was developed and linked to 1D and 2D models to capture the hydrodynamic processes required to predict the fate of water quality parameters in the pit lakes and Lac de Gras. Harnessing the strength of individual modelling platforms was the only approach to defensibly address regulatory concerns as well as meet set time frames. As an integrated platform, the model incorporated the proposed water management plan during operations and closure phases, the design and location of breaches connecting the pit lakes with Lac de Gras, water quality in pit lakes and water quality predictions for mine water discharges. This study presents the approach used to overcome modelling challenges due to this unique environment and describes methods used to integrate platforms to address regulatory requirements in a timely manner.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle