Geotechnical Notes on the Effects of Mexico's 1985 Earthquakes

by Ra?l J. Marsal, Comision Federal de Electricidad, Mexico City, Mexico,



Document Type: Proceeding Paper

Part of: The Mexico Earthquakes?1985: Factors Involved and Lessons Learned

Abstract:

The present notes briefly describe the most relevant effects of the September 19 and 20, 1985 earthquakes on shallow and deep foundations used in Mexico City, which is located at about 400 km (249 miles) from the seismic foci on the Pacific coast. For the sake of comparison, an account of the observations made at the port of Lazaro Cardenas and at the adjacent industrial complex built on the heterogeneous delta deposits of the Balsas River, close to the subduction zone of the Cocos plate and the continent, is also included. From the aforesaid observations in Mexico City, several lessons were learned and preliminary conclusions derived.

Subject Headings: Shallow foundations | Pile foundations | Deep foundations | Earthquakes | Developing countries | Underground structures | Seismic tests | Mexico | Mexico City

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