Nonlinear viscoelastic medium equivalence for stress wave propagation in a jointed rock mass
文献类型：期刊论文
| 作者 | Li, J. C.2; Ma, G. W.3; Fan, L. F.1 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2012 |
| 卷号 | 50页码:11-18 |
| 关键词 | Equivalent medium method Nonlinear deformational joint Jointed rock mass Viscoelastic medium Wave propagation |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2011.12.008 |
| 英文摘要 | A nonlinear visco elastic equivalent medium model is proposed for longitudinal stress wave propagation in a rock mass that contains equally spaced parallel joints. The joint deformation is assumed to satisfy the nonlinear Bandis-Barton (B-B) deformational model. By the simplification of the nonlinear B-B model into piecewise linear segments, the material parameters in the equivalent medium model are analytically derived. The nonlinear visco elastic equivalent medium model is verified by comparison with the results based on the displacement discontinuity method. It is shown that for smaller amplitude stress waves, when the rock joints deform in the linear elastic region, the nonlinear viscoelastic equivalent medium model is reduced to its linear form, whereas for larger amplitude stress waves, the present nonlinear model describes the wave amplitude-dependence of wave velocity. Two important properties, i.e., the wave transmission coefficient and the effective wave propagation velocity, are discussed in detail. (C) 2011 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000300932100002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3325]  |
| 专题 | 岩土力学所知识全产出_期刊论文 |
| 作者单位 | 1.Nanyang Technol Univ, Sch Civil & Environm Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech 3.Univ Western Australia, Sch Civil & Resource Engn ; |
| 推荐引用方式 GB/T 7714 | Li, J. C.,Ma, G. W.,Fan, L. F.. Nonlinear viscoelastic medium equivalence for stress wave propagation in a jointed rock mass[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2012,50:11-18. |
| APA | Li, J. C.,Ma, G. W.,&Fan, L. F..(2012).Nonlinear viscoelastic medium equivalence for stress wave propagation in a jointed rock mass.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,50,11-18. |
| MLA | Li, J. C.,et al."Nonlinear viscoelastic medium equivalence for stress wave propagation in a jointed rock mass".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 50(2012):11-18. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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