Distribution of Earth Pressure on Induced Trench Culverts
Bibliographic record
Abstract
The induced trench construction method has been in practice across North America for the last century, and the analysis and design of such structures are conducted in accordance with Marston’s theory and the indirect design method. Recent North American design standards have adopted the Standard Installations for Direct Design approach for the design of rigid culverts, which does not address induced trench installations. In order to advance the state of practice for induced trench design so as to align with modern design standards, it is necessary to first achieve a fundamental understating of their loading conditions as uncertainties remain with regards to the actual distribution of earth pressures around the circumference of induced trench culverts. In this study, finite-element modeling was employed to evaluate the distribution of earth pressures acting on induced trench culverts; numerical modeling techniques were validated with experimental data and parametric studies were performed to investigate the influence of key design parameters for culverts installed in both single and twin configurations. The results of this study suggest that the distribution of earth pressure acting on induced trench culverts differs significantly from that acting on positive projecting culverts and that the interaction between induced trench twin culverts is not insignificant.
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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".