Global generalized R/T recursive propagation matrix method for 2-D heterogeneous media SH seismic wave simulation
文献类型：期刊论文
| 作者 | Liu Bin2; Rong MianShui3; Sun WeiJia1; Huang JianPing2; Ba ZhenNing4 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 64期号:2页码:525-536 |
| 关键词 | Irregular boundary stratum Randomly heterogeneous layer Global generalized R/T recursive propagation matrix method (GGRTM) Hybrid seismic modeling |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2021N0459 |
| 英文摘要 | The deep earth spheres and sedimentary basins are partitioned heterogeneous medium systems, in which irregular stratigraphic boundaries ( including undulating surface) have a significant influence on the main characteristics of seismic waves, while the random inhomogeneity of the strata mainly affects the scattering and attenuation of seismic waves feature. In order to characterize the seismic wave reflection and transmission affected by irregular stratum boundaries and the seismic wave attenuation caused by heterogeneous body scattering accurately, the global generalized R/T recursive propagation matrix (GGRTM) method was proposed and gradually developed into another semi-analytical solution method for high-precision seismic propagation in complex media after the finite element and finite difference methods. Among the existing methods, the advantage of the GGRTM method for homogeneous medium with irregular boundaries situation lies in the accurate simulation of the reflection and transmission effects of the irregular boundaries, while slicing heterogeneous media into a series of horizontal and heterogeneous slabs and cooperate with GGRTM method can accurately describe the scattering of heterogeneous bodies. Here we absorb the advantages of these two existing methods, and propose a global generalized R/T recursive propagation matrix hybrid method that suits for inhomogeneous media and irregular boundaries, and then use it to simulate the 2-D SH wavefield of a complex model with irregular boundaries and inhomogeneous layers. Subsequently, the simulation accuracy of the method is discussed based on the comparative study of the method in this paper and the boundary element method. The results show that the hybrid method proposed in this paper is an effective way to solve the high-precision seismic simulation of complex models. |
| WOS关键词 | SEISMOGRAM SYNTHESIS ; MULTILAYERED MEDIA ; IRREGULAR INTERFACES ; INTEGRAL-EQUATION ; RAYLEIGH-WAVES ; LAYERED MEDIUM ; SV ; DIFFRACTION ; SCATTERING ; PHASES |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000617909800011 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/100138]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Rong MianShui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 2.China Univ Petr East China, Sch Geosci, Qingdao 266580, Peoples R China 3.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China 4.Tianjin Univ, Dept Civil Engn, Tianjin 300372, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Bin,Rong MianShui,Sun WeiJia,et al. Global generalized R/T recursive propagation matrix method for 2-D heterogeneous media SH seismic wave simulation[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2021,64(2):525-536. |
| APA | Liu Bin,Rong MianShui,Sun WeiJia,Huang JianPing,&Ba ZhenNing.(2021).Global generalized R/T recursive propagation matrix method for 2-D heterogeneous media SH seismic wave simulation.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,64(2),525-536. |
| MLA | Liu Bin,et al."Global generalized R/T recursive propagation matrix method for 2-D heterogeneous media SH seismic wave simulation".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 64.2(2021):525-536. |
入库方式： OAI收割
来源：地质与地球物理研究所
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