Stability analysis of anti-dip bedding rock slopes locally reinforced by rock bolts
文献类型：期刊论文
| 作者 | Zheng, Yun; Chen, Congxin; Liu, Tingting; Song, Dongri; Meng, Fei |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 251页码:228-240 |
| 关键词 | Slope stability analysis Anti-dip bedding rock slope Flexural toppling failure Rock bolt Local reinforcement |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2019.02.002 |
| 英文摘要 | Flexural toppling failure is a widespread issue in anti-dip bedding rock slopes. Rock bolts are usually employed to reinforce bedding rock slopes as they are low-cost and efficient. In this technical note, a mechanical model based on limit equilibrium theory is proposed to predict the stability of anti-dip bedding rock slopes locally reinforced by rock bolts. By considering a practical case, the proposed model is subsequently verified by comparing its results with numerical results using a discrete element method. Finally, we investigate the influence the positions of rock bolts have on the reinforcement effect. The results show that, for a given bolt angle, the reinforcement effect is controlled by the positions of the rock bolts. In particular, the installation position must start from the superimposed toppling zone (the zone within which the rock layers resemble superimposed cantilever beams). On the other hand, there is no reinforcement effect if the installation position starts from the cantilevered toppling zone (the zone within which the rock layers resemble individual cantilever beams). The method proposed provides theoretical guidance for the design of the reinforcements applied to anti-dip bedding rock slopes. The results produced should also help engineers to gain a better understanding of the reinforcement mechanisms underlying the action of the rock bolts used in anti-dip bedding rock slopes. |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000464480600019 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/15025]  |
| 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.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China; 2.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China; 3.Wsuhan Univ Technol, Key Lab Roadway Bridge & Struct Engn, Wuhan 430070, Hubei, Peoples R China; 4.Swinburne Univ Technol, Fac Sci Engn & Technol, Hawthorn, Vic 3122, Australia |
| 推荐引用方式 GB/T 7714 | Zheng, Yun,Chen, Congxin,Liu, Tingting,et al. Stability analysis of anti-dip bedding rock slopes locally reinforced by rock bolts[J]. ENGINEERING GEOLOGY,2019,251:228-240. |
| APA | Zheng, Yun,Chen, Congxin,Liu, Tingting,Song, Dongri,&Meng, Fei.(2019).Stability analysis of anti-dip bedding rock slopes locally reinforced by rock bolts.ENGINEERING GEOLOGY,251,228-240. |
| MLA | Zheng, Yun,et al."Stability analysis of anti-dip bedding rock slopes locally reinforced by rock bolts".ENGINEERING GEOLOGY 251(2019):228-240. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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