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| Effects of a covering layer in a circular-arc canyon on incident plane SV waves | |
| 引用本文： | 梁建文,严林隽. Effects of a covering layer in a circular-arc canyon on incident plane SV waves[J]. 地震学报(英文版), 2001, 14(6): 660-675. DOI: 10.1007/BF02718077 |
| 作者姓名： | 梁建文 严林隽 |
| 作者单位： | LIANG Jian-wen1)YAN Lin-jun1)Vincent W. Lee2) 1) Department of Civil Engineering，Tianjin University，Tianjin 300072，China 2) Department of Civil Engineering，University of Southern California，Los Angeles，CA 90089-2531，U.S.A. |
| 基金项目： | State Natural Science Foundation of China (No.59878032). |
| 摘 要： | Introduction The effect of local topographies on seismic wave propagation is one of the most attractive topics in seismology. It may be resolved by either an analytical method or a numerical method. Here, the analytical method is the wave function expansion method; numerical methods include the finite difference, finite element, boundary integration equation, and discrete wave number method, etc. The advantage of these numerical methods is that they can be applied to local inhomogeneity and ir… |
| 收稿时间： | 2001-04-24 |
| 修稿时间： | 2001-08-23 |
Effects of a covering layer in a circular-arc canyon on incident plane SV waves |
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| Liang Jian-wen,YAN Lin-jun,Vincent W.Lee. Effects of a covering layer in a circular-arc canyon on incident plane SV waves[J]. Acta Seismologica Sinica(English Edition), 2001, 14(6): 660-675. DOI: 10.1007/BF02718077 | |
| Authors: | Liang Jian-wen YAN Lin-jun Vincent W.Lee |
| Affiliation: | 1. Department of Civil Engineering, Tianjin University, 2. Department of Civil Engineering, University of Southern California, Los Angeles, |
| Abstract: | An analytical solution for scattering of incident plane SV waves by a circular-arc canyon with a covering layer was derived by Fourier-Bessel series expansion technique, and the solution was utilized to analyze the effects of the covering layer on incident plane SV waves. It was shown that the covering layer in a canyon, even if it is very thin, amplifies incident plane SV waves tremendously, and the amplification can be two and half times more than that for a simple canyon; the stiffness and thickness of the covering layer also have great effects on incident plane SV waves. |
| Keywords: | circular-arc canyon covering layer plane SV waves scattering analytical solution |
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