Extending the Life of RAS Piping for the City of Winnipeg
Bibliographic record
Abstract
The City of Winnipeg (city) has undertaken a large-scale rehabilitation of their North End Sewage Treatment Plant. An integral component of this rehabilitation project was the in situ structural renewal of 1,640 LF (500 m) of in-service return activated sludge (RAS) process piping with several active leaks. The city engaged Kontzamanis Graumann Smith MacMillian Inc., Group (KGS Group) as the project’s engineering consultant to evaluate options for strengthening the RAS piping, which range in diameter from 12 in. (300 mm) to 36 in. (900 mm). The city and KGS Group selected external carbon fiber reinforced polymer (CFRP) as the rehabilitation method. The CFRP subcontractor, Pullman, mobilized to the project in April 2022 and worked collaboratively alongside the city, KGS, Simpson, Gumpertz and Heger (SGH), and the general contractor—Trotter and Morton. As was expected, the project details evolved frequently in response to as found condition. SGH utilized an in-field engineer and an iterative design process to minimize project delays. The collective team met frequently to resolve these RFIs in a timely fashion. The CFRP component of the project was completed on time with change orders accounting for less than 1% of contract value.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".