Seismic Ground Deformation Analyses for the Design of a Large Outfitting Pier in North Vancouver, BC
Bibliographic record
Abstract
This paper presents seismic numerical analysis of a proposed outfitting pier at Seaspan’s Vancouver Shipyards facility, located in North Vancouver, British Columbia. The study focuses on evaluating seismic liquefaction-induced deformation along the pier. Two-dimensional seismic ground deformation analyses were conducted using the finite difference computer program FLAC, incorporating advanced soil constitutive models PM4SAND and PM4SILT to simulate the response of sand and low-plasticity silt layers, respectively. The seismic response was analyzed using a dataset of 30 earthquake records, selected to capture a wide range of seismic scenarios. The analysis indicated that the nearshore slope area experiences the largest ground deformation, with magnitudes ranging from 4 to 6 m toward the downslope to the south. Beyond approximately 150 m from the north end of the pier, the deformation diminishes to insignificance. These findings align with the results obtained from the one-dimensional seismic response analysis, validating the consistency of the FLAC analysis approach. The results of the FLAC analysis were used as input in the structural analyses and design of the proposed pier’s pile foundations.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".