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Seismic amplification—Mexico City
Author(s) -
Abbiss C. P.
Publication year - 1989
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290180108
Subject(s) - seismology , geology , amplitude , ground motion , shear (geology) , geotechnical engineering , seismic wave , field (mathematics) , mexico city , physics , petrology , optics , mathematics , ethnology , pure mathematics , history
The large amplification experienced at Mexico City during the earthquake of September 1985 is shown to be due to a standing shear wave set up in the clay layer. The frequency and amplitude of this wave were controlled by the properties of the clay which led directly to such high accelerations. The response curve due to the clay layer is calculated from field and laboratory measurements of the properties of the clay. There is good agreement with that obtained from field observations of ground motion.