Numerical Simulation and Observational Damage Rating In Sublevel Shrinkage Crosscuts Under High-Stress Condition at Lac Des Iles Mine
Bibliographic record
Abstract
ABSTRACT: Lac Des Iles Mine transitioned to the sublevel shrinkage mining method in 2016. New geotechnical challenges have been recently encountered at deeper levels due to high mining-induced stress around crosscuts. Several transverse crosscuts have sustained significant wall deformation, corner crushing, and instances of ground support failure. This study investigates the performance of transverse crosscuts in a sublevel under high-stress conditions, focusing the progression of rock mass damage during development and production stages. The Map3D modeling software was utilized to assess mining-induced stress redistribution and rock mass damage. Simulation results were validated through underground observations, revealing consistent patterns of stress evolution and damage progress across the level. The findings showed that mining induced damage initiated in central crosscuts and progressively affected other crosscuts as mining activities advanced.
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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".