New Generation Rotary Drill Bits: Klaw Bit Performance Analysis and Compared with Tricone Bit
Bibliographic record
Abstract
In open pit mining, drilling of blasting holes is a long and costly process.Selection of optimum bit for a formation is the most important parameter in rapid and economic drilling process.Although theoretical and experimental studies are common, the best way of choosing the most appropriate rock bit for a region is the usage of the bits directly on the machines.The aim of this study is to determine and compare performance of classical tricone bit and klaw which is new product in rotary drilling.For this reason, drilling speeds of both bits were measured in four benches having different geological properties in an open pit lignite mine that belongs to Demir Export.As comparing drilling speed of bits, klaw bit is 2, 8 times rapid than tricone bit in hard formation and between 1, 5 and 2, 5 times rapid in soft formation.Furthermore, replaceable teeth of klaw bit has advantage of continuing long time drilling without changing main body of it.Having longer life and higher drilling speed prove that klaw bits are important alternative bit for rotary drilling on economic aspect.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".