The Effect of Desaturation on the Static and Cyclic Mechanical Response of Dense Sand
Why this work is in the frame
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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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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