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Mechanical tests and engineering applicability of fibre plastic concrete used in tunnel design in active fault zones
Zhao, Kun; Chen, Weizhong; Yang, Diansen; Zhao, Wusheng; Wang, Shanyong; Song, Wanpeng
2019
Source PublicationTUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
ISSN0886-7798
Volume88Issue:-Pages:200-208
AbstractArticulated design is considered an effective anti-fault measure to prevent damage to tunnel lining caused by fault movement. A new type of plastic concrete was developed for the Xianglu mountain tunnel of the water diversion project in Yunnan Province. The effectiveness of this concrete was verified by laboratory tests and numerical simulations. The mechanical characteristics of this new type of fibre plastic concrete were identified through mechanical testing. The optimal fibre volume fraction (around 0.2%) was obtained and could increase the compressive strength, splitting tensile strength, ductility and toughness without causing a significant decrease in the elastic modulus. The internal forces and plastic strain of the lining under the action of strike-slip faulting were analysed by using the finite element method. The role of fibre plastic concrete as a flexible joint material to accommodate bending and shear deformation was studied. The results showed that the plastic strain was mostly concentrated in the flexible joints, where the fibre plastic concrete with favourable ductility and toughness properties absorbed the deformation, protecting the rigid segments from complete destruction. The fibre plastic concrete maintained its considerable integrity and strength and would not suddenly droop when subjected to bending-shear and tensile-compressive loads due to the cementation between the PVA fibre and the matrix. The characteristics mentioned above would facilitate maintenance of the tunnel after an earthquake and can provide a reference for the engineering of other anti-faulting designs.
KeywordFibre plastic concrete Articulated design Mechanical test Numerical simulation
DOI10.1016/j.tust.2019.03.009
Indexed BySCI
Language英语
WOS Research AreaConstruction & Building Technology ; Engineering
WOS SubjectConstruction & Building Technology ; Engineering, Civil
WOS IDWOS:000465193200016
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/14980
Collection岩土力学所知识全产出_期刊论文
国家重点实验室知识产出_期刊论文
Affiliation1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Shandong Univ, Res Ctr Geotech & Struct Engn, Jinan 250061, Shandong, Peoples R China;
4.Univ Newcastle, Fac Engn & Built Environm, ARC Ctr Excellence Geotech Sci & Engn, Callaghan, NSW, Australia
Recommended Citation
GB/T 7714
Zhao, Kun,Chen, Weizhong,Yang, Diansen,et al. Mechanical tests and engineering applicability of fibre plastic concrete used in tunnel design in active fault zones[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2019,88(-):200-208.
APA Zhao, Kun,Chen, Weizhong,Yang, Diansen,Zhao, Wusheng,Wang, Shanyong,&Song, Wanpeng.(2019).Mechanical tests and engineering applicability of fibre plastic concrete used in tunnel design in active fault zones.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,88(-),200-208.
MLA Zhao, Kun,et al."Mechanical tests and engineering applicability of fibre plastic concrete used in tunnel design in active fault zones".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 88.-(2019):200-208.
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