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Stability analysis of anti-dip bedding rock slopes locally reinforced by rock bolts
Zheng, Yun1; Chen, Congxin1; Liu, Tingting1,2; Song, Dongri3; Meng, Fei4
Corresponding AuthorZheng, Yun(yzheng@whrsm.ac.cn)
2019-03-09
Source PublicationENGINEERING GEOLOGY
ISSN0013-7952
Volume251Pages:228-240
SubtypeArticle
Contribution Rank3
AbstractFlexural 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.
KeywordSlope stability analysis Anti-dip bedding rock slope Flexural toppling failure Rock bolt Local reinforcement
DOI10.1016/j.enggeo.2019.02.002
Indexed BySCI
WOS KeywordFLEXURAL TOPPLING FAILURE ; FULLY-GROUTED BOLTS ; SIMULATION
Language英语
Funding ProjectNational Natural Science Foundation of China[11602284] ; National Natural Science Foundation of China[11472293] ; National Natural Science Foundation of China[51609183] ; Natural Science Foundation of Hubei province, China[2018CFB450] ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000464480600019
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Hubei province, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program
PublisherELSEVIER SCIENCE BV
EI Accession NumberELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25915
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorZheng, Yun
Affiliation1.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
Recommended Citation
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.
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