Blasting induced dynamic response analysis in a rock tunnel based on combined inversion of Laplace transform with elasto-plastic cellular automaton
文献类型：期刊论文
| 作者 | Mei, Wanquan5; Li, Mei4; Pan, Peng-Zhi3; Pan, Junfeng2; Liu, Kunlun1 |
| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 225期号:1页码:699-710 |
| 关键词 | Geomechanics Numerical approximations and analysis Wave propagation Wave scattering and diffraction Impact phenomena |
| ISSN号 | 0956-540X |
| DOI | 10.1093/gji/ggaa615 |
| 英文摘要 | The dynamic disturbance from explosion, earthquakes and stress impact may induce rock mass damage around the deep-buried tunnel. Here, we show the dynamic responses triggered by blasting load disturbance. In this paper, the theoretical formulae are first derived to evaluate the time-domain dynamic responses based on the wave function expansion method and the inversion of Laplace transform and then a self-developed numerical code, that is, elasto-plastic cellular automaton (EPCA), a module of CASRock, is subsequently employed to simulate the blasting induced elasto-plastic dynamic responses. It can be found from the analytical solutions that tensile stress concentration at two sidewalls occurs, while compressive counterpart at the roof and floor appears. Moreover, the radial velocity vibrations generate concentration at the two sidewalls, while the circumferential counterparts appear at the roof and floor. The numerical simulations indicate that compression-shear and tensile failure are the major mechanism for the rock mass damage around the rock tunnel. The analytical and numerical results help to understand the velocity vibrations and the major mechanism of rock mass damage and provide theoretical basis for the support of rock tunnel. |
| 资助项目 | Major State Basic Research Development Program of China[2017YFC0804203] ; National Natural Science Foundation of China[51621006] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDB-SSW-DQC029] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000646864000040 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27254]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Pan, Peng-Zhi |
| 作者单位 | 1.Shenhua Xinjiang Energy Co Ltd, Urumqi 830027, Peoples R China 2.CCTEG Coal Min Res Inst, Beijing 100013, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 4.Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Hubei, Peoples R China 5.Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mei, Wanquan,Li, Mei,Pan, Peng-Zhi,et al. Blasting induced dynamic response analysis in a rock tunnel based on combined inversion of Laplace transform with elasto-plastic cellular automaton[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2021,225(1):699-710. |
| APA | Mei, Wanquan,Li, Mei,Pan, Peng-Zhi,Pan, Junfeng,&Liu, Kunlun.(2021).Blasting induced dynamic response analysis in a rock tunnel based on combined inversion of Laplace transform with elasto-plastic cellular automaton.GEOPHYSICAL JOURNAL INTERNATIONAL,225(1),699-710. |
| MLA | Mei, Wanquan,et al."Blasting induced dynamic response analysis in a rock tunnel based on combined inversion of Laplace transform with elasto-plastic cellular automaton".GEOPHYSICAL JOURNAL INTERNATIONAL 225.1(2021):699-710. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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