Linkage-based device for creep testing of coal rock
Bibliographic record
Abstract
The creep properties of coal rock have been extensively investigated under conventional uniaxial stress conditions, whereas few studies have considered its characteristics or the process of seepage under triaxial stress. This study proposes and verifies a linkage-based creep test device for coal rock to study its creep characteristics under triaxial stress. The deformation, pressure, and signals of acoustic emission under triaxial stress were measured by using a specially designed data measurement system. The experimental device uses the connecting rod loading mechanism for continuous constant pressure loading. Through theoretical calculations and finite element analysis, the authors show that the strength and stiffness of the device satisfy the requirements of a maximum load of 300 kN. A creep test was carried out to verify the operation of the proposed device and analyze the creep characteristics of sandstone under different confining pressures. The results show that the device can analyze the catastrophic characteristics of sandstone, and this proves its validity and reliability in terms of monitoring the continuous pressure or constant pressure of sandstone during creeping. The device provides a new method to study the creep properties of coal rock under different stresses and seepage conditions.
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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) | 0.000 | 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 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".