Scattering and diffraction of earthquake motions in irregular,elastic layers,II: Rayleigh and body P and SV waves |
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| Institution: | 1. Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089-2531, USA;2. Canadian Nuclear Safety Commission, Ottawa, Ontario, Canada K1P 5S9;1. Department of Physics & Astronomy, Texas A&M University, College Station, TX 77843, USA;2. Department of Atmospheric Sciences, Texas A&M University, College Station, TX 77843, USA;1. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN), Russian Academy of Sciences, Troitsk Town, Moscow 142190, Russia;2. The University of Electro-Communications (UEC), Advanced Wireless Communications Research Center (AWCC), 1-5-1 Chofugaoka, Chofu Tokyo 182-8585, Japan;1. School of Physics and Optoelectronic Engineering, Xidian University, Xi?an 710071, China;2. National Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi?an 710071, China;1. Institute of Petroleum Geology and Geophysics, Russian Academy of Sciences, Ac. Koptyug Pr. 3, 630090 Novosibirsk, Russia;2. NTNU, S.P. Andersens veg 15a, 7491 Trondheim, Norway |
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| Abstract: | We present our study of the wave propagation in an irregularly layered, elastic wave-guide excited by incoming Rayleigh surface waves and P and SV body waves. Our aim is to show examples of applying a method that will make it possible to analyze the distribution and amplification of displacements, rotations, curvatures, strains, and stresses on or below the ground surface during passage of strong earthquake ground motion. We employ the weighted-residuals method, which makes it possible to calculate the scattered and diffracted waves, and then we illustrate the amplification of motions in the vicinity of inhomogeneity. |
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| Keywords: | Body and surface waves in irregular layers Scattering and diffraction by non-parallel layers |
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