中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Safety assessment of cable bolts subjected to tensile loads

文献类型:期刊论文

作者Xu, Ding-Ping2; Jiang, Quan2; Li, Shao-Jun2; Qiu, Shi-Li2; Duan, Shu-Qian3; Huang, Shu-Ling1
刊名COMPUTERS AND GEOTECHNICS
出版日期2020-12-01
卷号128页码:14
关键词Cable bolt Boltgrout interface Large deformation-broken failure Slip-softening failure Safety index
ISSN号0266-352X
DOI10.1016/j.compgeo.2020.103832
英文摘要Cable bolts are one of the most common tension anchorage systems for reinforcing the stability of rock/soil masses; however, the quantitative assessment of cable bolt safety via numerical simulations has not been deeply explored until now. In this technical study, a bolt tri-linear tensile model and a bolt-grout (B-G) interface trilinear shear model were integrated into a cable bolt tri-linear model to reflect the large tensile deformation-broken failure of the bolt and the B-G interface slip-softening failure after cable bolt yielding. A dimensionless index was developed by defining the maximum of the failure approach index (FAI) for bolt tensile failure and the FAI for B-G interface shear failure based of this cable bolt model to quantitatively assess the cable bolt safety. The comparison between the laboratory and numerical test results and engineering case analyses showed that the cable bolt FAI combined with the cable bolt tri-linear model, which could quantify the cable bolt safety and determine the cable bolt failure position and sequence as an improved substitute for cable bolt yield state indicators in numerical simulations. The present study is expected to offer a more accurate numerical simulation technique than existing simulation techniques in the quantitative assessment of cable bolt safety, finally contributing to the quantitative evaluation-based support design.
资助项目National Science Foundation of China[51979268] ; National Science Foundation of China[U1765206] ; National Science Foundation of China[41877256]
WOS研究方向Computer Science ; Engineering ; Geology
语种英语
WOS记录号WOS:000604541600006
出版者ELSEVIER SCI LTD
源URL[http://119.78.100.198/handle/2S6PX9GI/25509]  
专题中科院武汉岩土力学所
通讯作者Jiang, Quan
作者单位1.Yangtze River Sci Res Inst, Key Lab Geotech Mech & Engn Minist Water Resource, Wuhan 430010, Peoples R China
2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
3.Zhengsrhou Univ, Sch Civil Engn, Henan Engn Lab Underground Engn Safety & Qual Con, Zhengsrhou 450001, Peoples R China
推荐引用方式
GB/T 7714
Xu, Ding-Ping,Jiang, Quan,Li, Shao-Jun,et al. Safety assessment of cable bolts subjected to tensile loads[J]. COMPUTERS AND GEOTECHNICS,2020,128:14.
APA Xu, Ding-Ping,Jiang, Quan,Li, Shao-Jun,Qiu, Shi-Li,Duan, Shu-Qian,&Huang, Shu-Ling.(2020).Safety assessment of cable bolts subjected to tensile loads.COMPUTERS AND GEOTECHNICS,128,14.
MLA Xu, Ding-Ping,et al."Safety assessment of cable bolts subjected to tensile loads".COMPUTERS AND GEOTECHNICS 128(2020):14.

入库方式: OAI收割

来源:武汉岩土力学研究所

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