Modeling and Parametric Study of Gasketed Bell and Spigot Joint in Buried RC Pipeline
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
Joints in buried pipelines have diverse configurations and materials, and are subjected to different loading and installation conditions which will influence their performance. Therefore these parameters need to be examined, because joints play an important role in pipeline longevity. This research study developed a numerical model for a buried RC pipeline with a gasketed bell and spigot joint subjected to surface loads representing service conditions. The model was calibrated against experimental data and captured close to 80% of the joint rotation angle and the patterns of hoop strain at the joint components. The model was subsequently used in parametric studies which revealed the locations where a single wheel pair produces the largest shear displacement and rotation of the joints for the burial depth examined. The studies also indicated that a tandem axle configuration produces larger joint rotation than a single axle and single wheel pair configuration. The influence of the soil envelope stiffness and the effect of pavements on the joint performance was also described.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 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 | 0.001 |
| 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 it