期刊
STRUCTURES
卷 34, 期 -, 页码 1080-1098出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.istruc.2021.07.086
关键词
SFRC; Constituent; Properties; Tunnel lining; Performance
资金
- Fundamental Research Funds for the Central University, Chang'an University [300102219711]
- National Natural Science Foundation of China [51978066]
The complicated tunnelling conditions and variable engineering demands pose challenges for mesh-reinforced lining structures, while SFRC is considered a reliable alternative with good performance and advantages. The application of SFRC in tunnel linings can effectively control rock displacement, reduce lining pressure, and improve the stability of support structures.
The complicated tunnelling conditions and variable engineering demands have made numerous challenges of mesh-reinforced lining structures. Thereafter, the steel fiber reinforced concrete (SFRC) is said to be a reliable alternative to mesh-reinforced linings. This paper reviews the constituent materials and typical properties of SFRC. The main causes of mesh-reinforced lining cracks or structure failures are summarized, and current challenges for mesh-reinforced linings are examined. Also, the advantages of using SFRC for the realization of the tunnel linings are highlighted. Furthermore, design considerations and some practical cases on application performance of SFRC in tunnel linings are summarized. This review confirmed the positive effect of SFRC lining on rock displacement control, lining pressure reduction, and global and local stability of the support structures. The research provides solid insights for promoting the development of SFRC in tunnel linings.
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