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A Study on Seismic Isolation of Shield Tunnel Using Quasi-Static Finite Element Method
Li, Can; Chen, Weizhong; Zhao, Wusheng; Suzuki, Takeyasu; Shishikura, Yoshihiro
2019
Source PublicationSHOCK AND VIBRATION
ISSN1070-9622
Volume2019Issue:-Pages:-
AbstractUsing a quasi-static method based on an axisymmetric finite element model for seismic response analysis of seismically isolated tunnels, the seismic isolation effect of the isolation layer is studied, and the seismic isolation mechanism of the isolation layer is clarified. The results show that, along the longitudinal direction of the tunnel, the seismic isolation effect is mainly affected by the shear modulus of the isolation material. The smaller the shear modulus is, the more evident the seismic isolation effect is. This is due to the tunnel being isolated from deformation of its peripheral ground through shear deformation of the isolation layer. However, along the transverse direction of the tunnel, the seismic isolation effect is mainly affected by the shear modulus and Poisson's ratio of the isolation material. When Poisson's ratio is close to 0.5, a seismic isolation effect is not evident because the tunnel cannot be isolated from deformation of its peripheral ground through compression deformation of the isolation layer. Finally, a seismic isolation system comprising a shield tunnel in which flexible segments are arranged at both ends of an isolation layer is proposed, and it is proved that the seismic isolation system has significant seismic isolation effects both on the longitudinal direction and on the transverse direction.
DOI10.1155/2019/6209409
Indexed BySCI
Language英语
WOS Research AreaAcoustics ; Engineering ; Mechanics
WOS SubjectAcoustics ; Engineering, Mechanical ; Mechanics
WOS IDWOS:000473461500001
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/15074
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.Univ Yamanashi, Civil & Environm Engn Course, Grad Sch Engn, 4-3-11 Takeda, Kofu, Yamanashi 4008511, Japan;
4.Univ Yamanashi, Grad Sch Interdisciplinary Res, 4-3-11 Takeda, Kofu, Yamanashi 4008511, Japan
Recommended Citation
GB/T 7714
Li, Can,Chen, Weizhong,Zhao, Wusheng,et al. A Study on Seismic Isolation of Shield Tunnel Using Quasi-Static Finite Element Method[J]. SHOCK AND VIBRATION,2019,2019(-):-.
APA Li, Can,Chen, Weizhong,Zhao, Wusheng,Suzuki, Takeyasu,&Shishikura, Yoshihiro.(2019).A Study on Seismic Isolation of Shield Tunnel Using Quasi-Static Finite Element Method.SHOCK AND VIBRATION,2019(-),-.
MLA Li, Can,et al."A Study on Seismic Isolation of Shield Tunnel Using Quasi-Static Finite Element Method".SHOCK AND VIBRATION 2019.-(2019):-.
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