NEHRP Clearinghouse
- Title
- Effects of the 1985 Michoacan Earthquake on Water Systems and Other Buried Lifelines in Mexico.
- File
- PB89207229.pdf
- Author(s)
- Ayala, A. G.; O'Rourke, M. J.
- Source
- National Science Foundation, Washington, DC., March 8, 1989, 122 p.
- Identifying Number(s)
- NCEER-89-0009
- Abstract
- The effects of the 1985 Michoacan Earthquake on water systems in Mexico are investigated. Because the damage from the 1985 event was most severe in Mexico City, the report concentrates on the Metropolitan Mexico City Area. A historical perspective is provided by information about seismic damage to Mexican water systems from past earthquakes. The historical perspective highlights the seismic vulnerability of these types of systems. The effects of the earthquake on water supply and some aspects of the emergency response are discussed. Soil conditions in Mexico City and the characteristics of the earthquake are investigated and correlated with the observed damage. Damage statistics are presented for the buried segmented pipelines in the water system. Other sections are devoted to damage to a continuous (welded steel) pipeline and to seismic effects on the sewer and underground Metro lifelines. Seismic damage to lifelines in the epicentral region region was relatively light.
- Keywords
- Water supply; Damage; Mexico; Sewer pipes; Earthquake engineering; Water pipelines; Aqueducts; Pipelines; Earthquakes; Structural analysis