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Record W4295926144 · doi:10.1061/9780784484395.035

Design and Construction of New Shiploader Foundations within Existing Post-Tensioned Wharf in Region of High Seismicity

2022· article· en· W4295926144 on OpenAlex
Christopher Meisl, Andre Dratwa, Eric Liu, Andrew Quinn, Robert Schwetzke

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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenuePorts 2022 · 2022
Typearticle
Languageen
FieldEngineering
TopicGeotechnical Engineering and Underground Structures
Canadian institutionsTransport CanadaPraxis Spinal Cord Institute
Fundersnot available
KeywordsWharfPileInduced seismicityFoundation (evidence)DeckGeotechnical engineeringEngineeringStructural engineeringDisplacement (psychology)GeologyLiquefactionCivil engineering

Abstract

fetched live from OpenAlex

A new export facility required the installation of three new, fixed 2,000 tph grain shiploaders at an existing wharf. The site is located within a high seismicity zone with liquefiable soils. Each shiploader foundation was constructed as an independent structure from the existing wharf, which was expected to undergo significant damage and lateral displacements in a seismic event due to liquefaction. The locations of the new shiploaders required cutting the existing post-tensioned concrete deck to fit new foundation piles and provide a gap between the structures to minimize pounding during seismic activity. The existing wharf was also modified to introduce seismic fuses such that it could experience localized failure without impacting the new foundations. Each shiploader has a self-weight of approximately 600 t, and their foundations consist of a concrete deck atop vertical steel pipe piles. The geotechnical analysis software FLAC was used to estimate a maximum displacement of 1.3 m at the top of the new foundation structure due to liquefaction and lateral spreading. The foundation was analyzed via SAP2000 structural analysis software. To accommodate the large lateral displacement demands, a heavily reinforced pile-plug and pile-to-deck connection was required. This paper presents the unique engineering solutions that were implemented.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.202
Threshold uncertainty score0.401

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.021
GPT teacher head0.214
Teacher spread0.193 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it