Mechanical characterization of matrix coarse-grained soils with a large-sized triaxial device
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Bibliographic record
Abstract
This paper presents an experimental program that characterizes the mechanical behavior of heterogeneous soils using a large-sized triaxial apparatus (300 mm diameter and 600 mm height). A particular class of heterogeneous soil called matrix coarse-grained soil, composed of a mixture of a sandy matrix (Fontainebleau sand) and inclusions (gravels), was studied. The experimental procedure to rebuild samples is presented first with a description of a typical test setup. A synthesis of the experimental results obtained is then presented. A particular focus is placed on studying the influence of basic soil parameters: the properties of the inclusions (volumetric fraction, particle size, grading parameter) and the initial state of stress in the soil. The two classical methods used to study the mechanical properties of matrix coarse-grained soils in the laboratory (clipping and clipping-substitution) are evaluated.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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