Simulated Hydraulic Response of AECL's Isothermal Test and Comparison with Measured Data
Bibliographic record
Abstract
A large in-ground experiment, the Isothermal Test (ITT), was conducted in the Underground Research Laboratory to examine how a large mass of dense sand-bentonite buffer would take on water from a surrounding rock mass. The ITT was installed in a 1.24-m-diameter by 5-m-deep borehole in granite. The bottom two metres were filled with an in situ compacted sand-bentonite material. This material was capped by a 1.25-m-thick mass of concrete and was left undisturbed for 6.5 years. During this period, the pore water pressures in the buffer and the surrounding rock were continuously monitored. Numerical simulations were conducted using the commercially available finite-element program CODE_BRIGHT in an attempt to model the evolution of the pore water pressure in the unsaturated sand-bentonite buffer and the surrounding rock. The influence of the excavation-induced damage zone on the evolution of the hydraulic response in the sand-bentonite material and the rock was also examined. The water seepage from the rock to the borehole and the pore water pressure in the rock and the buffer were compared with the measured data.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".