Scour Repairs at Port of Halifax, Nova Scotia, Canada
Bibliographic record
Abstract
The Halterm Container Terminal is located at the entrance to Halifax Harbour on Nova Scotia's Atlantic Coast. The harbour has a natural depth of about 18 m, and is ice free year round. Halterm is one of the most important container terminals on the Canadian East Coast and total throughput for the 12 month period ending August 2000 exceeded 500,000 TEU. In recent years Halterm has been accepting ever larger container ships and in mid-1999 berthed the Regina Maersk, the world's largest container ship at that time. Various methods of repairing the undermining were considered including the use of bagged concrete and large armour stone, but ultimately it was determined that the best long term solution involved the use of steel sheet pile and underwater (tremie) concrete. Steel sheet pile was selected for two reasons, 1) to retain the tremie concrete used to fill the void under the caisson, and 2) to prevent future undermining of the caisson. In the undermined location there was an insufficient thickness of material above bedrock to provide the lateral resistance necessary to retain the tremie concrete and there was also the possibility that this same material would wash out after the repair was complete. It was therefore deemed necessary to key the bottom of the sheet pile into the bedrock.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.006 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.084 | 0.011 |
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".