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Seismic Vulnerability Function for High-Diameter Buried Pipelines: Mexico City's Primary Water System Case
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2003
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EngineeringEarthquake HazardsEarthquake ScenarioEarth ScienceGeotechnical EngineeringHigh-diameter Buried PipelinesSeismic Vulnerability FunctionPrimary Water SystemEarthquake ForecastingPipe JackingEarthquake EngineeringInduced SeismicityGeographyMexico CityEngineering GeologyPipeline EngineeringSeismologyCivil EngineeringGeomechanicsEmpirical RelationshipSeismic Hazard
An empirical relationship is developed to estimate damage due to earthquakes in the primary water system in Mexico City. Damage data during the 1985 Michoacan earthquake are reanalyzed, taking advantage of the fact that, during the last decade, the ability to estimate ground motion in the Valley of Mexico, including the important site effects observed, has been significantly improved. The relationship proposed is believed to be a good tool to estimate damage during future earthquakes and to estimate repair costs. A preliminary seismic microzonation is proposed which, along with better design practices, will improve the performance of the pipelines. This microzonation might help in the creation of contingency plans aimed to reestablish the water service as soon as possible after a large earthquake.