Stability analysis of anti-dip bedding rock slopes locally reinforced by rock bolts

doi:10.1016/j.enggeo.2019.02.002

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Stability analysis of anti-dip bedding rock slopes locally reinforced by rock bolts
	Zheng, Yun ; Chen, Congxin ; Liu, Tingting ; Song, Dongri ; Meng, Fei
刊名	ENGINEERING GEOLOGY
	2019
卷号	251 期号:-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
内容类型	期刊论文
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
作者单位	1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China; 2.Wsuhan Univ Technol, Key Lab Roadway Bridge & Struct Engn, Wuhan 430070, Hubei, Peoples R China; 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, 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.