Détermination expérimentale d'une loi de tassement du ballast des voies ferrées soumises à un chargement latéral
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Bibliographic record
Abstract
A one-third scale bench test representing a portion of railway track has permited to determine a lateral settlement law of the ballast. The experimentation uses a two-block sleeper with ballast and with elastomeric or wood representing the soil. A jack exerts the same signal as the train. Two similitudes have been tried with the bench test. The first one conserves the volumetric mass of the ballast and the stresses just under the blocks, and the second one conserves the volumetric mass of the ballast and the acceleration. Measured settlements are different in the two cases of similitude. From this it may be deduced that one phenomenon is responsible for the settlement: vibrations. We have identified two laws for the lateral settlement of the ballast: one for a few cycles and another one for a lot of cycles. The sum of these two laws can describe the whole behaviour of the ballast. These laws are in accordance with the measurements made on track.Key words: ballast, settlement, experimentation, reduced scale, railroad track.
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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) | 0.000 | 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