An analytical solution of scattering of semi-circular hill on cylindrical SH waves
文献类型：期刊论文
| 作者 | Li, Zhiwen1,2; Li, Haibo1,2
|
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2021-04-17 |
| 页码 | 13 |
| 关键词 | Scattering and diffraction Topographic amplification effects Cylindrical SH waves Semi-circular hill Wave function expansion method |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-021-02232-3 |
| 英文摘要 | Irregular topography can induce scattering and diffraction of incident seismic waves and cause topographic amplification effects. In this paper, a theoretical model for the scattering and diffraction of cylindrical SH waves caused by a semi-circular hill is established for the first time to reveal the influence of source characteristics on the topographic amplification effects. The analytical solution of the theoretical model is derived via the wave function expansion method and image theory, and its accuracy is verified by checking the given boundary conditions. Base on the presented solution, the influences of source location, incident wave frequency, and hill radius on amplitude amplification are systematically investigated. Comparison of amplitude amplification around the hill caused by cylindrical waves and plane waves indicates that the effect of source distance on topographic amplification effects is not negligible unless the source distance exceeds 15 times the hill radius. It suggests that much attention should be paid to the effects of source location on topographic amplification effects, especially when the source is near the topography. |
| 资助项目 | National Key R&D Program of China[2020YFA0711802] ; National Natural Science Foundation of China[51779248] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000640851900002 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27258]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Haibo |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhiwen,Li, Haibo. An analytical solution of scattering of semi-circular hill on cylindrical SH waves[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2021:13. |
| APA | Li, Zhiwen,&Li, Haibo.(2021).An analytical solution of scattering of semi-circular hill on cylindrical SH waves.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,13. |
| MLA | Li, Zhiwen,et al."An analytical solution of scattering of semi-circular hill on cylindrical SH waves".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2021):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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