Liquefaction Hazard Evaluation: Methodology and Application

by F. Ostadan, Bechtel Corp, San Francisco, United States,
J. Marrone, Bechtel Corp, San Francisco, United States,
J. Litehiser, Bechtel Corp, San Francisco, United States,
I. Arango, Bechtel Corp, San Francisco, United States,



Document Type: Proceeding Paper

Part of: Lifeline Earthquake Engineering

Abstract:

Deterministic liquefaction potential evaluations are commonly done in engineering practice and several probabilistic models exist. In this paper an extended method is described that combines elements of a conventional probabilistic seismic hazard algorithm with several new models for the conditional probability of liquefaction to find a formal probabilistic estimate of liquefaction potential that explicitly includes uncertainties in regional seismicity parameters and in the conditional probability of liquefaction. Results are calculated at two sites, one in the eastern and the other in the western United States.

Subject Headings: Soil liquefaction | Probability | Seismic tests | Seismic effects | Geohazards | Earthquakes | Occupational safety | United States

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