Techniques for Progressive Failure Simulation of Hard Brittle Surrounding Rockmass: Taking the URL Test Tunnel as an Example
文献类型：期刊论文
| 作者 | Zhong, Daning1; Chen, Jianlin1; Zhou, Hui2; Chen, Xiangrong1; Jiang, Yali1; Li, Liangquan1; Chen, Jun1 |
| 刊名 | ADVANCES IN CIVIL ENGINEERING
 |
| 出版日期 | 2021-08-25 |
| 卷号 | 2021页码:12 |
| ISSN号 | 1687-8086 |
| DOI | 10.1155/2021/8449905 |
| 英文摘要 | Accurate simulation of the failure process of hard brittle surrounding rockmass is very important for the analysis and control of the structural stability in deep underground engineering. In order to simulate the progressive failure process of the hard brittle surrounding rockmass, a continuous discontinuous deformation analysis method that couples the finite element and discrete element is adopted. Taking the URL test tunnel in Canada as an engineering case, the constitutive model of the contact considering the effects of cohesion weakening and friction strengthening is applied, and the 2D approximation to 3D excavation by applying elastic modulus reduction technology is adopted to simulate the range and depth of crack growth of the surrounding rockmass. Then, the comparison between simulated results and on-site monitoring results is performed, which shows good consistency. At the same time, the key factors in the numerical simulation of progressive failure in hard brittle rockmass are identified, including the number of elements, excavation effects, and constitutive models. The results show that the constitutive model determines the basic form of crack propagation, but in order to accurately simulate the progressive propagation of cracks, the number of elements must be sufficient enough and the effects of 3D excavation must be considered. The analysis accurately simulates the progressive failure characteristics of hard brittle surrounding rockmass under high stress, achieving the purpose of reasonably grasping the degree of damage to the surrounding rockmass, and provides technical reference and support on how to accurately simulate the failure of hard brittle surrounding rockmass using the finite discrete element method. |
| 资助项目 | China Postdoctoral Science Foundation[2021M690999] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| 出版者 | HINDAWI LTD |
| WOS记录号 | WOS:000693729600004 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27875]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhong, Daning |
| 作者单位 | 1.PowerChina Huadong Engn Corp, Hangzhou 310014, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Daning,Chen, Jianlin,Zhou, Hui,et al. Techniques for Progressive Failure Simulation of Hard Brittle Surrounding Rockmass: Taking the URL Test Tunnel as an Example[J]. ADVANCES IN CIVIL ENGINEERING,2021,2021:12. |
| APA | Zhong, Daning.,Chen, Jianlin.,Zhou, Hui.,Chen, Xiangrong.,Jiang, Yali.,...&Chen, Jun.(2021).Techniques for Progressive Failure Simulation of Hard Brittle Surrounding Rockmass: Taking the URL Test Tunnel as an Example.ADVANCES IN CIVIL ENGINEERING,2021,12. |
| MLA | Zhong, Daning,et al."Techniques for Progressive Failure Simulation of Hard Brittle Surrounding Rockmass: Taking the URL Test Tunnel as an Example".ADVANCES IN CIVIL ENGINEERING 2021(2021):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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