Ground motion at canyons of arbitrary shape under incident sh waves |
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| Authors: | Francisco J Snchez-Sesma Emilio Rosenblueth |
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| Institution: | Francisco J. Sánchez-Sesma,Emilio Rosenblueth |
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| Abstract: | A method for calculating the two-dimensional scattering of incident SH waves by canyons of arbitrary shape is presented. The problem is formulated in terms of a Fredholm integral equation of the first kind with the integration path outside the boundary. Point-source discretization and a least-squares scheme are used. Numerical results are compared with the known analytic solution for a semi-cylindrical canyon. Spatial variations of surface amplitudes are computed for triangular and half-cycle sinusoidal canyons as well. |
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