Thickwood Trunk Sewer—Direct Pipe Installation
Bibliographic record
Abstract
The Thickwood Perimeter Sewer Project is a seven phase multiyear project designed to increase the resiliency of the storm and sanitary systems in the Thickwood neighborhood located in Fort McMurray, Alberta. The program includes implementing large diameter trunk sanitary and storm sewer mains throughout the Thickwood neighborhood to address issues with surcharging throughout the system. Traversing this section included crossing beneath the Athabasca River valley slope and large diameter water, sanitary, and oil and gas pipelines. A trenchless solution was deemed necessary to traverse under various critical infrastructure located in the area. The Direct Pipe methodology offered the benefits of the both HDD and microtunneling with additional efficiencies that made the installation viable. Design of the Direct Pipe required a complex geometry including a compound vertical and horizontal curve of different radii through complex stratigraphy of overburden clays, dense sands and gravels, oilsands, and limestone. Tendered, awarded, and constructed in 2019, this project proved challenging from concept through construction of the 470-m-long 1,200-mm diameter steel storm sewer. This paper provides an overview of the project and discuss the challenges and lessons learned in the delivery of this challenging project.
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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 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.015 | 0.002 |
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".