Analytical solution to non-isothermal pore-pressure evolution in hydrating minefill
Bibliographic record
Abstract
Anomalous rises in minefill pressure during deposition shutdown have been increasingly reported in recent field investigations, raising growing concerns over contemporary underground tailings disposal. While constrained backfill expansion during hydration-heat release has been invoked to rationalize such perplexing observations, a benchmark for understanding the complex minefill response to thermal loading is still lacking. A novel analytical procedure is thus proposed in this study to characterize the non-isothermal evolution of pore pressure in cemented backfill hydrating in undrained adiabatic settings. By constructing a suitable variable system and selecting a proper auxiliary parameter for calculation, the proposed strategy based on canonical thermo-poroelasticity could enable straightforward implementation and has shown excellent compliance with computational and experimental results. The analytical results suggest that because higher temperature could stimulate cement hydration while enhancing simultaneously fluid expansivity, the pore pressure would decline initially with the rising curing temperature and then revert to increase after a critical threshold. Moreover, our investigation has shown that increasing binder usage is not always conducive to pore-pressure dissipation, as the payoff can be also hinged strongly upon the initial thermal condition. These findings could better elucidate the intriguing control of coupled multiphysics processes on backfill behaviour, and can also serve benchmarking purposes for sophisticated computational procedures.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 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 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".