Failure behavior and strength model of blocky rock mass with and without rockbolts
文献类型：期刊论文
| 作者 | Zhu, Chun2; Xing, Xiansen2,3; He, Manchao2,4; Tang, Zhicheng1; Xiong, Feng1,5; Ye, Zuyang6; Xu, Chaoshui7 |
| 刊名 | INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 34期号:6页码:747-762 |
| 关键词 | Blocky rock mass Rockbolt ground support Uniaxial compression test Failure mechanism Uniaxial compressive strength model |
| ISSN号 | 2095-2686 |
| DOI | 10.1016/j.ijmst.2024.06.008 |
| 英文摘要 | To better understand the failure behaviours and strength of bolt-reinforced blocky rocks, large scale extensive laboratory experiments are carried out on blocky rock-like specimens with and without rockbolt reinforcement. The results show that both shear failure and tensile failure along joint surfaces are observed but the shear failure is a main controlling factor for the peak strength of the rock mass with and without rockbolts. The rockbolts are necked and shear deformation simultaneously happens in bolt-reinforced rock specimens. As the joint dip angle increases, the joint shear failure becomes more dominant. The number of rockbolts has a significant impact on the peak strain and uniaxial compressive strength (UCS), but little influence on the deformation modulus of the rock mass. Using the Winkler beam model to represent the rockbolt behaviours, an analytical model for the prediction of the strength of bolt-reinforced blocky rocks is proposed. Good agreement between the UCS values predicted by proposed model and obtained from experiments suggest an encouraging performance of the proposed model. In addition, the performance of the proposed model is further assessed using published results in the literature, indicating the proposed model can be used effectively in the prediction of UCS of bolt-reinforced blocky rocks. |
| 资助项目 | National Key Research and Development Projects of China[2021YFB2600402] ; National Natural Science Foundation of China[52209148] ; National Natural Science Foundation of China[52374119] ; State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME023023] ; Key Laboratory of Water Management and Water Security for Yellow River Basin, Ministry of Water Resources[2023-SYSJJ-02] |
| WOS研究方向 | Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001311390000001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42527]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Tang, Zhicheng; Xiong, Feng |
| 作者单位 | 1.China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China 2.Hohai Univ, Sch Earth Sci & Engn, Nanjing 210024, Peoples R China 3.Minist Water Resources Construct, Key Lab Water Management & Water Secur Yellow Rive, Zhengzhou 450003, Peoples R China 4.China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn, Beijing 10083, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 6.Wuhan Univ Sci & Technol, Sch Resource & Environm Engn, Wuhan 430081, Peoples R China 7.Univ Adelaide, Fac Sci Engn & Technol, Sch Chem Engn, Adeliade 5005, Australia |
| 推荐引用方式 GB/T 7714 | Zhu, Chun,Xing, Xiansen,He, Manchao,et al. Failure behavior and strength model of blocky rock mass with and without rockbolts[J]. INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY,2024,34(6):747-762. |
| APA | Zhu, Chun.,Xing, Xiansen.,He, Manchao.,Tang, Zhicheng.,Xiong, Feng.,...&Xu, Chaoshui.(2024).Failure behavior and strength model of blocky rock mass with and without rockbolts.INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY,34(6),747-762. |
| MLA | Zhu, Chun,et al."Failure behavior and strength model of blocky rock mass with and without rockbolts".INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY 34.6(2024):747-762. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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