Effects of Shear Wave Velocity and Thickness of Soil Layers on 1D Dynamic Response in the Saguenay Region, Quebec
Bibliographic record
Abstract
Before reaching the ground surface, the amplitude, duration and frequency content of the vertically propagating seismic waves can be modified by the local stratigraphy and soil physical properties.In this study, we evaluate the impacts of the soil shear wave velocity (V s ) and thickness (H) on the seismic ground response using 1D ground response analysis.Simplified soil profiles typical for the Saguenay Lac-Saint-Jean region (SLSJ) are considered defined with relatively thin glacial sediments overlaid by more than 100m thick marine sequence.Impedance contrasts exist at the bedrock interface and between the fine marine and glacial sediments.Time-domain nonlinear 1D numerical simulations are carried out with Deepsoil®.The seismic input at the bedrock level is defined with synthetic earthquake time histories compatible with eastern Canadian seismo-tectonic settings.It is found that the changes in the Fundamental period of the soil caused by changes in the thickness of the soil deposit and soil V s have a significant impact on the surficial amplification.
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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 | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 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) | 0.002 | 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".