Water Leakage Detection Using Optical Fiber at the Peribonka Dam
Why this work is in the frame
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Bibliographic record
Abstract
A monitoring system based on temperature readings using fiber optic cables was designed for leakage detection through possible defects in the cutoff wall of the Peribonka main dam. The system is based on the heat pulse method to measure the apparent soil thermal resistivity. By combining a line heat source with a fiber optic distributed temperature measurement, local analysis of heat transfer can be performed to detect, locate and estimate the leak percolating velocity. Laboratory tests were carried out in clean granular sand having a hydraulic conductivity (kSat) of 10–3 m/s. The apparent thermal resistivity measured with the system decreased from 0.6 m-K/W to negligible values when the Darcy velocity of the percolating fluid was increased from 10–6 to 10–4 m/s. This shows the capacity of the proposed system for detecting leakage in these kinds of soils. Finite element modeling of the experiments shows the same trend. Three hybrid cables were installed in boreholes through the alluvial foundation of the Peribonka main dam by way of boreholes. The cutoff wall is now completed and preliminary measurements indicate no significant seepage.
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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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.002 |
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