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Three‐dimensional response of a cylindrical canyon in a layered half‐space
Author(s) -
Luco J. E.,
Wong H. L.,
De Barros F. C. P.
Publication year - 1990
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.4290190603
Subject(s) - canyon , geology , excitation , boundary (topology) , geometry , viscoelasticity , plane (geometry) , half space , space (punctuation) , seismology , mechanics , geotechnical engineering , physics , mathematics , mathematical analysis , geomorphology , computer science , operating system , quantum mechanics , thermodynamics
An indirect boundary‐method formulation to obtain the three‐dimensional response of an infinitely long canyon of uniform but arbitrary cross‐section cut in a layered viscoelastic half‐space is presented. Seismic excitation in the form of plane elastic waves acting at an arbitrary angle with respect to the axis of the canyon is considered. Numerical results for SH‐, SV‐ and P‐wave excitation of a circular canyon and of a canyon with a topography similar to that in the vicinity of Pacoima Dam are discussed in some detail.