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Earthquake Loss Estimation Modeling of the Seattle Water System Using a Deterministic Approach

by Donald B. Ballantyne, Kennedy/Jenks/Chilton, Federal Way, United States,
Craig Taylor, Kennedy/Jenks/Chilton, Federal Way, United States,



Document Type: Proceeding Paper

Part of: Lifeline Earthquake Engineering

Abstract:

This paper summarizes the project and resulting report entitled Earthquake Loss Estimation Modeling of the Seattle Water System (Ballantyne, 1990) conducted under funding from the United States Geological Survey (USGS). The report develops and applies techniques for estimating both direct and indirect earthquake losses to water systems. The water system lifeline is inventoried in a section of metropolitan Seattle. System component losses are estimated as a percent loss or number of pipeline failures per unit length as a function of severity of ground shaking and liquefaction susceptibility. Component losses are then incorporated into a system network analysis model to assess system operating conditions immediately following an earthquake. Operating conditions are presented in map format as adequate, inadequate, or no water pressure.

Subject Headings: Water pipelines | Water supply systems | Water pressure | Earthquakes | Water leakage and water loss | System analysis | Mathematical models | United States | Seattle | Washington

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