A New Method of Reducing Liquefaction Susceptibility through Pore Water Modification
Bibliographic record
Abstract
Soil liquefaction during earthquakes causes major destruction. Liquefaction occurs when pore pressures increase to the point where the soil effective stress is very low, reducing soil strength to the point where existing loads cannot be supported. Reducing susceptibility to liquefaction has traditionally been done by grouting, drains or densification. A new method of reducing liquefaction susceptibility is presented: immobilizing pore water. A gel-like chemical is added to saturated soil. The resulting material is not conventional soil", and does not liquefy in the conventional sense. Excess pore pressures are still generated, but effective stress is not reduced according to the classical equation. The result is that the soil retains a considerable amount of strength. This paper gives preliminary results of cyclic triaxial tests on clean Ottawa density sand impregnated with gel. A procedure for preparing very loose triaxial specimens by freezing is reviewed. The results indicate liquefaction susceptibility is significantly reduced.
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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 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".