The Effect of Desaturation on the Static and Cyclic Mechanical Response of Dense Sand
Bibliographic record
Abstract
Small amounts of soil desaturation can substantially impact the undrained static and cyclic response of sand when compared to the fully saturated case. Due to its impact on undrained behavior, desaturation can increase the strain hardening behavior of loose sand subject to a monotonic static load and is an emerging technique for mitigation of the liquefaction potential of sands. Several investigators have demonstrated the increase in the cyclic strength, decrease in pore pressure generation, and reduction in seismic settlement that accompanies small amounts of desaturation in a loose sand. However, the potential impacts of desaturation on the undrained static response of dense soils is less well studied. In this work, results from the cyclic and static undrained testing of a natural beach sand and Ottawa 20-30 silica sand show that, while desaturation does significantly improve the cyclic response of dense sand, desaturation may also lead to a decrease in the monotonic compressive strength of sand initially dense of critical state. The impact of this result on the implementation of liquefaction mitigation via desaturation is discussed.
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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) | 0.000 | 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) | 0.002 | 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".