Measurement and correlations of <i>K</i> and <i>V</i>s anisotropy of granular soils
Bibliographic record
Abstract
The coefficient of lateral earth pressure at rest (K0) and stress-dependent shear wave velocity (Vs) of granular soils under one-dimensional compression loading were measured using a modified floating wall consolidometer-type bender element testing system. The Vs of the granular soils was monitored through paired bender elements installed in the floating wall and on top and base platens, and the Vs anisotropy of the soils was investigated by comparing the Vs values in three orthogonal directions. Granular materials such as glass beads (GB) and Ottawa sand with different shapes and sizes were adopted and the effects of particle shape and size and stress level on K0 and Vs anisotropy were discussed. From the laboratory observations, K0 was found to be dependent on the particle shape and surface roughness. The anisotropic stress state was found to play a major role in governing the Vs anisotropy of the GB; however, the Vs anisotropy of the sand resulted from the inherent geometry/fabric anisotropy and manifested by the anisotropic stress state. In addition, the degree of cross-anisotropy was defined and used to evaluate the cross-anisotropic properties of the geomaterials.
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How this classification was reachedexpand
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) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".