Supersonic Detonation in Rock Mass - Part 2: Particle Displacements and Velocity Fields for Single and Multiple Non-Delayed and Delayed Detonating Blastholes
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Bibliographic record
Abstract
In Part 1 of this contribution [1] constant speed supersonic detonation of an infinitely long column charge and the resulting stress wave propagating from the blasthole were addressed and an analytical solution for the stress field was presented. This publication (Part 2) deals with the associated distributions of particle displacements and velocities using previously obtained results. The wave field in the immediate vicinity of multiple non-delayed and delayed detonating blastholes is discussed. Results show that the wave fronts decay with different decay coefficients for the P- and S-wave and these decay coefficients depend primarily on the velocity of detonation. Regions of large concentrations of stress and particle velocity could be identified in the regions adjacent to the blastholes as well as between the blastholes. These regions are indicative of material crushing and tensile failure. The wave field scenario is discussed for two, three and four delayed blastholes.
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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 | 0.000 | 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 it