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 |
| DOI | 10.1016/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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