Geotechnical data from a large landslide site at Quyon, Quebec
Bibliographic record
Abstract
A geotechnical study was initiated in 2014 to investigate the triggering mechanism of an enormous prehistorical landslide near Quyon, Quebec. The study consisted of surveys of the thickness of the glaciolacustrine deposits with a hand held seismograph, cone penetrometer testing (CPT), seismic cone penetrometer testing (SCPT), field vane shear testing (VST), soil sampling, and laboratory testing. Preliminary results were presented in a separate paper. This Open File provides more detailed information and updated data. In summary, the measured thickness of the Champlain Sea deposits in the region ranges from 0 m (at bedrock outcrops) to 68 m. The underlying bedrock surface forms a buried valley underlying the modern Quyon River. The glaciomarine sediments consist of clay, silty clay or clayey silt. The materials from the southern area are finer than that of the northern area. The materials in the southern area exhibit a high to extremely high plasticity with Plasticity Index ranging from 38.6% to 68.6%. The materials from the northern area have low to high plasticity with the Plasticity Index ranging from 13.9% to 33.0%. The clay/silt samples from 30 m depth and above have moisture content higher than the liquid limit in both the northern and southern areas. The CPT bearing factor Nkt was calibrated to be 11.5. The pore pressure bearing factor N?u varies with pore water pressure parameter Bq. The soil undrained shear strength (Su) ranges from 22 kPa to 250 kPa. The Su profiles determined from Nkt and N?u are identical. A clay unit of continuous Su profile was identified at three CPT locations in the undisturbed areas outside the landslide scar. Absence of the low strength material and discontinuity of the Su profiles were observed at upper elevations in the drill holes inside the landslide scar, which suggest that the upper clay unit either flowed away or was dislocated.
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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 | 0.002 | 0.003 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.008 | 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".