Grout Curtain Installation for Sump Excavation in Permafrost Region of Northern Canada
Bibliographic record
Abstract
As part of an expansion of a tailings facility infrastructure located in northern Canada, a grout curtain was installed at the location selected for a future sump expansion to reduce any potential inflow of water from a lake located immediately adjacent to the sump. Curtain installation included treatment of both the overburden and upper and lower fractured bedrock, and interface treatment carried out through use of sleeve port pipe technology. Challenging ground conditions that included poor quality, frost shattered bedrock required that a combined solution of consolidation grouting and downstage techniques be applied to reach the target curtain depth. An additional challenge was the need for rapid grout thickening and volume limit protocols combined with continuous environmental monitoring while injecting in close proximity to the lake. This paper summarizes the grouting program, challenges and solutions, and successful implementation of environmental monitoring techniques. The site is located in an isolated area of northern Canada and is accessed either by aircraft or by winter ice road.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.004 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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".