57ième CONGRÈS CANADIEN DE GÉOTECHNIQUE 57TH CANADIAN GEOTECHNICAL CONFERENCE 5ième CONGRÈS CONJOINT SCG/AIH-CNN 5TH JOINT CGS/IAH-CNC CONFERENCE EVALUATION OF UNSATURATED FLOW IN MINE WASTE ROCK
Bibliographic record
Abstract
This project consists in studying some key hydrogeological properties of mine waste rocks and to evaluate the factors that influence flow of water in these materials. The aim is to improve characterization methods in the field and in the lab and to develop more representative models. The field work helped better understand the effect of surface layers compacted by heavy machinery on the pile hydrogeology. Laboratory tests showed that the coarse grain fraction (diameter greater than 5 mm) can play a significant role in the value of the saturated hydraulic conductivity and the water retention curve. Numerical calculations were performed to investigate the unsaturated flow conditions in the pile, for various configurations and properties. The numerical models, which were based on a typical geometry for waste rock dumps, showed that the water entry value of the materials can play an important role in the amount of infiltration into the pile. RÉSUMÉ Ce projet visait à étudier les propriétés hydrogéologiques des stériles miniers et à évaluer les facteurs qui influencent l’écoulement de l’eau dans les empilements de stériles. On veut ainsi améliorer la caractérisation de ces matériaux sur le terrain et dans le laboratoire pour obtenir des résultats de modélisation numérique plus représentatifs. Les travaux sur le terrain ont permis de mieux comprendre l’effet des couches compactées par la machinerie lourde sur l’hydrogéologie des haldes à stériles. Les essais de laboratoire ont montré que la partie plus grossière (diamètre des grains supérieur à 5 mm) joue un rôle important sur la valeur de la conductivité hydraulique saturée et de la courbe de rétention d’eau. Les modèles numériques, qui sont basés sur des géométries réels de haldes à stériles, ont mis en lumière l’importance de la pression d’entrée d’eau sur la quantité d’infiltration dans les empilements de stériles. 1.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.005 | 0.003 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.006 | 0.001 |
| Open science | 0.002 | 0.004 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.211 | 0.050 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".