Microtremor survey method based on inversion of the SPAC coefficient of multi-mode Rayleigh waves and its application
文献类型：期刊论文
| 作者 | Xu PeiFen4,5,6; Du YaNan7; Ling SuQun2,3; You ZhiWei4,5,6; Yao Jin1; Zhang Hua1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 63期号:10页码:3857-3867 |
| 关键词 | Microtremor survey Multi-mode Rayleigh waves SPAC coefficients inversion Fast simulated annealing |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2020O0148 |
| 英文摘要 | To make full use of the information found in the Rayleigh waves which propagate along the earth surface, a microtremor survey method was proposed and studied in this paper, based on the inversion of the SPAC coefficient of multi-mode Rayleigh waves observed in the microtremor signal. This technique provides a useful and reliable option for urban geological investigation by mapping the S-wave velocity structure of the near surface. First, the energy ratios of the multimode Rayleigh waves were computed using the medium response of each mode; Then, the SPAC coefficients of the fundamental and higher modes Rayleigh waves were calculated by forward modeling, with the influence of the finite arrays on the SPAC coefficient in practical work being taken into account; Finally, fast simulated annealing algorithm was used to invert the SPAC coefficient to obtain the subsurface shear wave velocity structure. Synthetic microtremor datasets from three typical geological models were studied using the mode algorithm of Herrmann, and compared with the inverted SPAC coefficients from field data. This technique was successfully used in the underground investigation project in downtown Shanghai, and the inversion results from the theoretical data and field data matched well. Our study shows that the microtremor survey method can provide more accurate and high resolution mapping of the near surface, especially for the geological structures with weak or hard interlayers. |
| WOS关键词 | DISPERSION-CURVES |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000575879600022 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98288]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Xu PeiFen |
| 作者单位 | 1.Guangzhou Metro Design & Res Inst Co Ltd, Guangzhou 510010, Peoples R China 2.Beijing Zhongkejiao Energy & Environm Technol Co, Beijing 100083, Peoples R China 3.Geoanal Inst Co Ltd, Tokyo 1840012, Japan 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 7.Xiongan Urban Planning & Design Inst Co Ltd, Xiongan New Area 071700, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu PeiFen,Du YaNan,Ling SuQun,et al. Microtremor survey method based on inversion of the SPAC coefficient of multi-mode Rayleigh waves and its application[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2020,63(10):3857-3867. |
| APA | Xu PeiFen,Du YaNan,Ling SuQun,You ZhiWei,Yao Jin,&Zhang Hua.(2020).Microtremor survey method based on inversion of the SPAC coefficient of multi-mode Rayleigh waves and its application.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,63(10),3857-3867. |
| MLA | Xu PeiFen,et al."Microtremor survey method based on inversion of the SPAC coefficient of multi-mode Rayleigh waves and its application".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 63.10(2020):3857-3867. |
入库方式： OAI收割
来源：地质与地球物理研究所
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