Geotechnical properties of Søvind Marl — a plastic Eocene clay
Why this work is in the frame
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Bibliographic record
Abstract
Results are presented of the analyses of the geotechnical properties of a fissured and highly plastic Danish tertiary clay: Søvind Marl. The analyses demonstrate the difficulties that can arise when dealing with this particular clay due to its unique characteristics. To characterize Søvind Marl and its pore water, samples were collected at multiple depths from five different borings located at the same site at Aarhus Harbour, Denmark, and all encountering the same Søvind Marl strata. Although Søvind Marl was deposited under circumstances very similar to those of London Clay, its properties show a poor resemblance to London Clay or other known clays. One of the key properties of Søvind Marl was found to be its extremely high plasticity, which can exceed 300%. Søvind Marl has high concentrations (up to 95%) of clay minerals, with a particularly large portion of smectite. Several key index parameters are presented and discussed including natural water content, Atterberg limits (plasticity in the typical range of 100%–250%), and calcite content (up to 65%). Results of vane shear tests and cone penetration tests are also presented. Oedometer tests yield two very different values for the preconsolidation stress level, although only one of these is correct. The dual calculation is associated with the fissured nature of Søvind Marl, which may confound traditional interpretation of test results, but must be taken into account for understanding of test results leading to proper classification of the material.
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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 | 0.001 |
| 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