Analysis of Flexural Toppling Failure in Rock Slopes Using Discrete Element Method
文献类型：期刊论文
| 作者 | Zheng, Yun2,3; Wang, Runqing2,3; Chen, Congxin2,3; Meng, Fei1,3 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2021-10-06 |
| 卷号 | 9页码:14 |
| 关键词 | rock slopes flexural toppling failure discrete element method stability analysis displacement discontinuity |
| DOI | 10.3389/feart.2021.773088 |
| 英文摘要 | Flexural toppling failure is a common failure mode of natural and artificial rock slopes, which has caused serious damage to human life and property. In this work, an advanced numerical method called the Universal Distinct Element Code (UDEC) was used to study the mechanism of flexural toppling failure. In total, more than twenty slope models were built and analyzed. Two new parameters (displacement discontinuity and transition coefficient of failure surface) were introduced to present a further understanding of flexural toppling. The results show the failure zone of rock slopes subjected to flexural toppling includes two parts: the first-order instability part (FOIP) and the independent toppling zone (ITZ). The FOIP can be further divided into two subzones: the sliding zone (SZ) and the superimposed toppling zone (STZ). The occurrence of surface deformation discontinuities is the precursor to flexural toppling failure. The first displacement discontinuity occurs on the boundary between the FOIP and the ITZ. The angle, spacing, and angle of the joints, the angle of the slope has a significant influence on the stability of anti-dip bedding rock slopes. However, they do not affect the deformation and failure pattern of the slope. |
| 资助项目 | National Natural Science Foundation of China[12072358] ; National Natural Science Foundation of China[12102315] ; Open Research Fund of the State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018009] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000709122800001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/28380]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Meng, Fei |
| 作者单位 | 1.Wuhan Univ Technol, Hubei Key Lab Roadway Bridge & Struct Engn, Wuhan, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Yun,Wang, Runqing,Chen, Congxin,et al. Analysis of Flexural Toppling Failure in Rock Slopes Using Discrete Element Method[J]. FRONTIERS IN EARTH SCIENCE,2021,9:14. |
| APA | Zheng, Yun,Wang, Runqing,Chen, Congxin,&Meng, Fei.(2021).Analysis of Flexural Toppling Failure in Rock Slopes Using Discrete Element Method.FRONTIERS IN EARTH SCIENCE,9,14. |
| MLA | Zheng, Yun,et al."Analysis of Flexural Toppling Failure in Rock Slopes Using Discrete Element Method".FRONTIERS IN EARTH SCIENCE 9(2021):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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