An improved equivalent viscoelastic medium method for wave propagation across layered rock masses
文献类型：期刊论文
| 作者 | Li, J. C.1; Li, H. B.1; Zhao, J.2 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2015 |
| 卷号 | 73页码:62-69 |
| 关键词 | Equivalent viscoelastic medium model Rock mass Seismic quality factor Wave propagation Layered interface |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/i.ijrmms.2014.10.008 |
| 英文摘要 | The behavior of waves propagating through a rock mass is complicated by the discontinuous nature posed by the joints in the rock mass. However, at large scale, the jointed rock mass can be treated as an equivalent continuous medium. The purpose of this paper is to establish a method to determine the equivalent viscoelastic property of rock masses with different seismic quality factors, and to analyze seismic wave propagation across jointed rock masses. Each rock mass contains uniformly distributed joint sets with arbitrary orientation. The equivalent viscoelastic parameters are calculated for a rock mass with different seismic quality factors. The wave propagation equation is then derived for seismic wave across layered rock masses, where the parallel layer interfaces are assumed to be welded. Comparison between the improved equivalent viscoelastic medium method (EVNIM) and the existing analytical methods is carried out for two specific cases: reflection at free surface, and transmission across a discontinuous interface between two media. The effects of some parameters, such as the incident angle, the thickness of the layer and the rock mass seismic quality factor, on wave propagation are discussed. (C) 2014 Elsevier Ltcl. All rights reserved |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000347033000007 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3662]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.Monash Univ, Dept Civil Engn |
| 推荐引用方式 GB/T 7714 | Li, J. C.,Li, H. B.,Zhao, J.. An improved equivalent viscoelastic medium method for wave propagation across layered rock masses[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2015,73:62-69. |
| APA | Li, J. C.,Li, H. B.,&Zhao, J..(2015).An improved equivalent viscoelastic medium method for wave propagation across layered rock masses.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,73,62-69. |
| MLA | Li, J. C.,et al."An improved equivalent viscoelastic medium method for wave propagation across layered rock masses".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 73(2015):62-69. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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