Roadway Support Technology with Sliding Cracking Surrounding Rock under Tectonic Stress
Bibliographic record
Abstract
The west ventilation roadway in Damoling Coal Mine in China suffered the serious impact of tectonic stress.The deformation of the roadway was observed and the asymmetric deformation behavior was analyzed.FLAC3D was used to simulate the distribution of the stress, displacement and plastic zone with the original support.The drawbacks of the original support scheme were deficient support resistance, no effect on the asymmetric deformation and no support effect on the floor.The improved support scheme named "symmetric integrated support technology using long anchors and anchor cables" was proposed.The new support suggested increasing the length of anchors, optimizing the interval of anchors, and installing anchors in the floor.The simulation results of FLAC3D verify the improved support scheme.The deformation data of the roadway after conducting the improved support scheme was obtained.The deformation value showed a remarkable decrease and the asymmetric deformation characteristic was improved obviously.The successful application of the supporting technology provides a reference for roadways with similar geological conditions.
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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 | 0.000 |
| 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 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".