Cyclic axial performance of helical-tapered piles in sand
Bibliographic record
Abstract
The cyclic performance of a novel piling system is presented in this article. It is composed of spun-cast ductile iron (SCDI) tapered pile fitted with a lower helix. The pile combines the durability of rough surface spun-cast ductile iron, the efficiency of tapered section and the construction advantages of helical piles. Five instrumented SCDI tapered helical piles and two straight helical piles were installed in sand and tested in cyclic compression and uplift. Effects of prior monotonic and cyclic tests on the piles’ cyclic performance were assessed. Finite element simulations of the tested piles were performed to evaluate the possible stiffness change during loading. The proposed pile exhibited enhanced cyclic compressive performance compared to straight shaft piles. Prior cyclic uplift loads had a negative effect on the proposed pile’s performance, whereas previous monotonic compression loading reduced its cyclic uplift displacement. Both tested configurations showed satisfactory cyclic uplift perfor...
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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 | 0.000 |
| 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) | 0.001 | 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 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".