Numerical Modeling of an Umbrella-Shaped Bolt and Its Anchorage Characteristics in Rock Engineering
文献类型：期刊论文
| 作者 | Xiong, Yong4; Chen, Hang4; Cheng, Yonghui4; Hu, Shenggang4; Wang, Zhaofeng1,2; Gao, Yaohui3 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2022-03-28 |
| 卷号 | 10期号:-页码:- |
| 关键词 | umbrella-shaped bolt structural analysis simulation method excavation damaged zone rock supporting |
| 英文摘要 | The umbrella-shaped bolt (U-bolt) is a novel type of mechanical bolt used for rock reinforcement. It is made of a smooth steel bar, hinges, rigid rods, and sliding blocks. During installation and operation, the tension of the bolt is converted into the extrusion force on the rock mass deep in slope, so that the higher compressive strength of the rock mass is used to obtain the greater friction force and anchoring force. In this article, the structural and mechanical analysis results of the U-bolt is provided, and the relation between penetration and point normal stress is discussed. Based on these analyses, a simulation method for the U-bolt is proposed. The bolt elements are identified at first, then the penetration on the rock mass is calculated, and the tensile strength of bolt elements is increased to a reasonable value. Meanwhile, the method is applied to deep-buried rock reinforcement and a rock slope, and simulation results reveal that the U-bolt can alleviate the fracturing degree and reduce the depth and displacement of the excavation damaged zone (EDZ), and decrease the landslide distance. |
| 学科主题 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000783292800001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35336]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, University of Chinese Academy of Sciences, Beijing, China 2.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China 3.Hydropower Engineering Institute, Power China Huadong Engineering Corporation Limited, Hangzhou, China 4.Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Changjiang River Scientific Reseatch Institute, Wuhan, China |
| 推荐引用方式 GB/T 7714 | Xiong, Yong,Chen, Hang,Cheng, Yonghui,et al. Numerical Modeling of an Umbrella-Shaped Bolt and Its Anchorage Characteristics in Rock Engineering[J]. FRONTIERS IN EARTH SCIENCE,2022,10(-):-. |
| APA | Xiong, Yong,Chen, Hang,Cheng, Yonghui,Hu, Shenggang,Wang, Zhaofeng,&Gao, Yaohui.(2022).Numerical Modeling of an Umbrella-Shaped Bolt and Its Anchorage Characteristics in Rock Engineering.FRONTIERS IN EARTH SCIENCE,10(-),-. |
| MLA | Xiong, Yong,et al."Numerical Modeling of an Umbrella-Shaped Bolt and Its Anchorage Characteristics in Rock Engineering".FRONTIERS IN EARTH SCIENCE 10.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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