A 3D Discrete-Continuum Coupling Approach for Investigating the Deformation and Failure Mechanism of Tunnels across an Active Fault: A Case Study of Xianglushan Tunnel
文献类型：期刊论文
| 作者 | Ma, Yalina; Sheng, Qian; Zhang, Guimin; Cui, Zhen |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2019 |
| 卷号 | 9期号:11页码:- |
| 关键词 | tunnel active fault zone discrete-continuum coupling method micromechanics mechanical response flexible joint |
| DOI | 10.3390/app9112318 |
| 英文摘要 | For water transmission tunnels constructed in high-risk seismic regions of western China, active faults pose threats of serious ruptures to the tunnels. To overcome this issue, a 3D discrete-continuum coupling approach is introduced into the study. By this approach, spherical discrete-element-method (DEM) particles are used to represent the surrounding rock mass, and the tunnel is considered to be the continuous finite-difference-method (FDM) zone. In this way, a 3D coupling model was established to study the longitudinal displacement profile and stress response of the tunnel lining under various fault dislocations. The failure pattern of the surrounding rock mass was investigated from a micro perspective. Meanwhile, the design strategy of flexible joint was investigated with the present numerical model. The results from a parametric study show that the smaller segment length, wider width and weaker strength of the flexible joints are beneficial to the anti-dislocation performance of the tunnel. Moreover, an orthogonal array test technique was utilized to investigate the influence level of the main design parameters of the flexible joint on the lining internal stress. With the obtained knowledge, the optimal combination for flexible joint design was presented. Findings may provide references for the anti-dislocation issue of tunnels across active faults. |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000472641200146 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/14971]  |
| 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.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 2.China Univ Min & Technol, State Key Lab GeoMech & Deep Underground Engn, Xuzhou 221116, Jiangsu, Peoples R China 3.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Ma, Yalina,Sheng, Qian,Zhang, Guimin,et al. A 3D Discrete-Continuum Coupling Approach for Investigating the Deformation and Failure Mechanism of Tunnels across an Active Fault: A Case Study of Xianglushan Tunnel[J]. APPLIED SCIENCES-BASEL,2019,9(11):-. |
| APA | Ma, Yalina,Sheng, Qian,Zhang, Guimin,&Cui, Zhen.(2019).A 3D Discrete-Continuum Coupling Approach for Investigating the Deformation and Failure Mechanism of Tunnels across an Active Fault: A Case Study of Xianglushan Tunnel.APPLIED SCIENCES-BASEL,9(11),-. |
| MLA | Ma, Yalina,et al."A 3D Discrete-Continuum Coupling Approach for Investigating the Deformation and Failure Mechanism of Tunnels across an Active Fault: A Case Study of Xianglushan Tunnel".APPLIED SCIENCES-BASEL 9.11(2019):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。