Case Study: Correlation between Becker and SPT Blow Counts
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
This paper presents the results of a site-specific study correlating Becker penetration test blow counts to that of the standard penetration test. The study was conducted as part of the Woodfibre LNG export facility project. The project site is located near Squamish, British Columbia. Site investigation for the project included standard penetration tests, Becker penetration tests, and instrumented Becker penetration tests. The blow count values from the three different test methods needed to be converted to equivalent standard penetration test values for use in seismic analyses and design of the various LNG infrastructure types. Four different methods and correlations were evaluated. Comparison of the equivalent blow-count data obtained from adjacent boreholes with different test methods shows wide differences in the resultant equivalent standard penetration test values obtained using currently available conversions methods. We propose site-specific conversion factor to correlate blow-count data from the different test methods for sand and gravel soil types. This paper also presents a framework to correlate the bounce chamber pressure and hammer energy measurements, which can be used to convert the blow counts from Becker penetration tests to equivalent standard penetration test values.
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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