Study on elastic P-wave propagation law in unfavorable geologic structures with discontinuous deformation analysis method
文献类型：期刊论文
| 作者 | Zhang, Y. H.; Fu, X. D.; Sheng, Q.; Leng, X. L. |
| 刊名 | ARABIAN JOURNAL OF GEOSCIENCES
 |
| 出版日期 | 2013 |
| 卷号 | 6期号:11页码:4557-4564 |
| 关键词 | Earthquake Unfavorable geologic structure Elastic P-wave Propagation law Discontinuous deformation analysis Rock mechanism |
| ISSN号 | 1866-7511 |
| DOI | 10.1007/s12517-012-0773-5 |
| 英文摘要 | The propagation of elastic P-wave in unfavorable geologic structures is a complex process which contains reflex, transmission, and refraction. In this paper, the discontinuous deformation analysis (DDA) method is introduced, and the viscous boundary condition and stress wave input way are applied to enable the DDA method to simulate the seismic dynamic response of underground rock mass. The improved DDA program is used to analyze the propagation laws of elastic P-wave in joints and weak interlayer. The results show that (1) for a range of joint stiffness, the difference of transmission coefficient of joint surface between DDA calculation and theoretical solution is small; (2) the lower the joint stiffness, the more obvious the attenuation of the elastic P-wave is; (3) varied joint spacing and joint number play different roles on the attenuation of elastic P-wave; (4) the DDA calculation result is consistent with the theoretical solution for the transmission coefficient of interface; (5) the thickness and elastic modulus of weak interlayer will affect the interference effect of multiple transmission waves; (6) with the increasing weak interlayer thickness H (or a), the attenuation of the elastic P-wave is more obvious; and (7) the lower the wave impedance ratio of weak interlayer, the more obvious the attenuation of the elastic P-wave is. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000325774500040 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3523]  |
| 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 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Zhang, Y. H.,Fu, X. D.,Sheng, Q.,et al. Study on elastic P-wave propagation law in unfavorable geologic structures with discontinuous deformation analysis method[J]. ARABIAN JOURNAL OF GEOSCIENCES,2013,6(11):4557-4564. |
| APA | Zhang, Y. H.,Fu, X. D.,Sheng, Q.,&Leng, X. L..(2013).Study on elastic P-wave propagation law in unfavorable geologic structures with discontinuous deformation analysis method.ARABIAN JOURNAL OF GEOSCIENCES,6(11),4557-4564. |
| MLA | Zhang, Y. H.,et al."Study on elastic P-wave propagation law in unfavorable geologic structures with discontinuous deformation analysis method".ARABIAN JOURNAL OF GEOSCIENCES 6.11(2013):4557-4564. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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