Challenging Rehabilitation of a Trunk Sewer Using Sprayed Geopolymer Lining in Ontario
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The 16th Avenue Sanitary Trunk Sewer Rehabilitation project comprises rehabilitation of a partially deteriorated sewer located in Markham, Ontario. This 3.0-km section of 2.6-m inner diameter trunk sewer tunnel is located at depths ranging between 35 and 47 m below ground surface. Based upon the results of a Pilot Study, the Regional Municipality of York (York Region) proceeded with the full rehabilitation using sprayed geopolymer as the permanent structural sewer lining. Numerous challenges were anticipated and encountered during construction including installing key bypass system components at depths of 47 m, sewer waterproofing with groundwater heads of 45 m, and considerations for optimal geopolymer spray application. An important lesson learned was that it is essential for infiltration to be adequately controlled for the geopolymer to be applied to a substrate free of flowing water to achieve sewer lining rehabilitation with adequate long-term performance. The first 1.5 km of the planned 3.0 km of sewer rehabilitation on 16th Avenue was completed in October 2019 and an inspection was conducted after 6 months in-service (March 2020) showing that the lining was performing as designed.
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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) | 0.002 | 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 it