Seismic wave propagation analysis in the framework of generalized continuum mechanics theory
文献类型：期刊论文
| 作者 | Bai, Wenlei1,2; Chen, Chaopu1,2; Liu, Hong1,2; Li, Youming1,2; Wang, Zhiyang3 |
| 刊名 | JOURNAL OF APPLIED GEOPHYSICS
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 215页码:10 |
| ISSN号 | 0926-9851 |
| 关键词 | Elastic Modeling Multiscale Wave propagation |
| DOI | 10.1016/j.jappgeo.2023.105092 |
| 英文摘要 | For the problems of seismic wave propagation, scale effects will appear while considering the microstructures of medium. Scale effects mean that new components of wave fields appear in the seismograms due to the microstructure interactions in the medium and vary with the change of the characteristic length scale parameters. The generalized continuum mechanics (GCM) theory which introduces the intrinsic length scales of the microstructures is suitable for analyzing the scale effects of seismic wave propagation. We adopt the concept of multiscale microstructure interactions, that is, the modified couple stress theory, and the one-parameter second strain gradient theory, as two branches of the GCM theory, have the same definition characteristic length scale parameters of medium, to describe the microstructure interactions at different scales. Through the quantitative relationship between the characteristic length scale parameters of the medium and the micropore, the layered model of the characteristic length scale parameters of the micropore is constructed for numerical modeling in a unified framework, and the scale effects of seismic wave propagation is analyzed. More specifically, the asymmetric elastic wave equations under a unified framework are derived, and the physical definition of the characteristic length scale parameters of medium is given. And the influence of the characteristic length scale parameter of the micropore on the seismic wave propagation is focused on. Finally, the scale effects of seismic waves excited by high-speed trains under the viaduct system are analyzed, and some conclusions are drawn. |
| WOS关键词 | STRAIN GRADIENT THEORY ; COUPLE STRESS THEORY ; ELASTICITY ; PLASTICITY ; EQUATIONS ; VIBRATION ; MODEL ; POLAR ; BEAM |
| 资助项目 | Joint Funds of the National Natural Science Foundation of China[A2309002] ; "HYXD" national project[A2309002] ; "HYXD" national project[XJZ2023050044] ; [U20B2014] |
| WOS研究方向 | Geology ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001021141400001 |
| 资助机构 | Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; "HYXD" national project ; "HYXD" national project ; "HYXD" national project ; "HYXD" national project ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; "HYXD" national project ; "HYXD" national project ; "HYXD" national project ; "HYXD" national project ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; "HYXD" national project ; "HYXD" national project ; "HYXD" national project ; "HYXD" national project ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; Joint Funds of the National Natural Science Foundation of China ; "HYXD" national project ; "HYXD" national project ; "HYXD" national project ; "HYXD" national project |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111304]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Wang, Zhiyang |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 3.Beijing Univ Chem Technol, Coll Informat Sci & Technol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Wenlei,Chen, Chaopu,Liu, Hong,et al. Seismic wave propagation analysis in the framework of generalized continuum mechanics theory[J]. JOURNAL OF APPLIED GEOPHYSICS,2023,215:10. |
| APA | Bai, Wenlei,Chen, Chaopu,Liu, Hong,Li, Youming,&Wang, Zhiyang.(2023).Seismic wave propagation analysis in the framework of generalized continuum mechanics theory.JOURNAL OF APPLIED GEOPHYSICS,215,10. |
| MLA | Bai, Wenlei,et al."Seismic wave propagation analysis in the framework of generalized continuum mechanics theory".JOURNAL OF APPLIED GEOPHYSICS 215(2023):10. |
入库方式： OAI收割
来源：地质与地球物理研究所
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