Design, Construction, and Preliminary Results of Two Insulation Covers at the Meadowbank Mine
Bibliographic record
Abstract
Two experimental insulation covers made of inert waste rocks and were of 2 and 4 m-thick respectively were tested at the Meadowbank Mine site to assess the performance of insulation covers tailings storage facility. On each experimental cell, volumetric water content, matric suction and temperature sensors were installed at three stations and at various depths. Oxygen consumption tests were also performed below the cover and in the tailing pond to estimate the reactivity of the covered and uncovered Meadowbank tailings. This paper focuses on the design, the construction and the instrumentation of the tested insulation covers. Preliminary results of the monitored temperatures at the central station and of the OC tests are presented for each cell. For both tested covers, results indicate good thermal insulation performances since the covered mine tailings remain below the freezing point during the warmest period of the year. The reactivity of the tailings under the two tested covers is below the detection limit (10 moles of O2/m2/year) of the OC method while the reactivity of uncovered tailings during summer is between 20-85 moles of O2/m2/year.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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".