Effect of joint thickness on seismic response across a filled rock fracture
文献类型：期刊论文
| 作者 | Zhao, J.1; Li, J. C.3; Li, H. B.3; Li, X. F.1,2,3 |
| 刊名 | GEOTECHNIQUE LETTERS
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 8期号:3页码:190-194 |
| 关键词 | earthquakes laboratory tests rocks/rock mechanics seismicity |
| ISSN号 | 2049-825X |
| DOI | 10.1680/jgele.18.00042 |
| 英文摘要 | This study aims to investigate the influence of joint thickness on seismic response across a filled fracture with strong nonlinear deformability. To simulate seismic attenuation of thicker joints subject to high-amplitude stress waves, the split Hopkinson pressure bar is utilised to generate normally incident P wave and the dry quartz sand is used to simulate the filled joints. Three joint thicknesses - that is 5, 10 and 15 mm, are studied under identical incident waves. The stress-strain response of the filling materials is described by Barton-Bandis model having different loading-unloading behaviours. The initial stiffness and the maximum allowable closure of the joints changing with the joint thickness are studied. The thicker joints result in lower initial stiffness and cause lower seismic wave transmission across the fracture. The high-amplitude stress strengthens the nonlinearity of the filling materials and increases the stiffness. Besides, the seismic attenuation factor Q, derived from the energy dissipation, is lower than that computed by the transmission coefficient due to the frequency filtering. |
| 资助项目 | National Natural Science Foundation of China[51439008] ; National Natural Science Foundation of China[51679231] ; China Scholarship Council[201604910678] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000446927900004 |
| 出版者 | ICE PUBLISHING |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/6036]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, X. F. |
| 作者单位 | 1.Monash Univ, Dept Civil Engn, Clayton, Vic, Australia 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, J.,Li, J. C.,Li, H. B.,et al. Effect of joint thickness on seismic response across a filled rock fracture[J]. GEOTECHNIQUE LETTERS,2018,8(3):190-194. |
| APA | Zhao, J.,Li, J. C.,Li, H. B.,&Li, X. F..(2018).Effect of joint thickness on seismic response across a filled rock fracture.GEOTECHNIQUE LETTERS,8(3),190-194. |
| MLA | Zhao, J.,et al."Effect of joint thickness on seismic response across a filled rock fracture".GEOTECHNIQUE LETTERS 8.3(2018):190-194. |
入库方式： OAI收割
来源：武汉植物园
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