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- W4384928598 abstract "Pacific Gas & Electric (PG&E) has significant assets in the San Francisco Bay Area (SFBA), with broad areas adjacent to the Bay that are susceptible to liquefaction and permanent ground deformation (PGD) during an earthquake. To facilitate system-wide risk evaluations, we have developed a liquefaction model to predict liquefaction ground surface manifestation, settlement, and lateral spreading deformation within a roughly 9,000 km2 study area. We extend site-specific liquefaction analyses to the entire project area through a hybrid probabilistic finite difference groundwater model in conjunction with deposit scale statistics derived from over 4,000 geotechnical borings and 17,000 well records. The resulting liquefaction tool may be used to estimate the probability of liquefaction triggering and PGD based on input peak ground acceleration (PGA) and earthquake magnitude. Comparisons to historic liquefaction observations indicate that the model reasonably matches qualitative observations from previous earthquakes and improves upon existing models by (1) incorporating a larger subsurface database, (2) implementing a spatially continuous groundwater model, (3) updated liquefaction triggering models, and (4) providing estimates of PGD." @default.
- W4384928598 created "2023-07-22" @default.
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- W4384928598 date "2023-07-20" @default.
- W4384928598 modified "2023-09-25" @default.
- W4384928598 title "A Tool to Evaluate Liquefaction and Resulting Permanent Ground Deformation in the San Francisco Bay Area" @default.
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- W4384928598 doi "https://doi.org/10.1061/9780784484968.030" @default.
- W4384928598 hasPublicationYear "2023" @default.
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