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Failure Characteristics of Joint Bolts in Shield Tunnels Subjected to Impact Loads from a Derailed Train
Joint Authors
Yan, Qi-xiang
Yang, Wen-bo
Deng, Zhixin
Zhang, Yanyang
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-13
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
Impact loads generated by derailed trains can be extremely high, especially in the case of heavy trains running at high speeds, which usually cause significant safety issues to the rail infrastructures.
In shield tunnels, such impact loads may not only cause the damage and deformation of concrete segments, but also lead to the failure of segmental joint bolts.
This paper presents a numerical study on the failure behavior of segmental joint bolts in the shield tunnel under impact loading resulting from train derailments.
A three-dimensional (3D) numerical model of a shield tunnel based on the finite element (FE) modelling strategy was established, in which the structural behavior of the segmental joint surfaces and the mechanical behavior of the segmental joint bolts were determined.
The numerical results show that the occurrence of bolt failure starts at the joints near the impacted segment and develops along the travel direction of train.
An extensive parametric study was subsequently performed and the influences of the bolt failure on the dynamic response of the segment were investigated.
In particular, the proposed FE model and the analytical results will be used for optimizing the design method of the shield tunnel in preventing the failure of the joint bolts due to the impact load from a derailed HST.
American Psychological Association (APA)
Yan, Qi-xiang& Deng, Zhixin& Zhang, Yanyang& Yang, Wen-bo. 2017. Failure Characteristics of Joint Bolts in Shield Tunnels Subjected to Impact Loads from a Derailed Train. Shock and Vibration،Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1204201
Modern Language Association (MLA)
Yan, Qi-xiang…[et al.]. Failure Characteristics of Joint Bolts in Shield Tunnels Subjected to Impact Loads from a Derailed Train. Shock and Vibration No. 2017 (2017), pp.1-17.
https://search.emarefa.net/detail/BIM-1204201
American Medical Association (AMA)
Yan, Qi-xiang& Deng, Zhixin& Zhang, Yanyang& Yang, Wen-bo. Failure Characteristics of Joint Bolts in Shield Tunnels Subjected to Impact Loads from a Derailed Train. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1204201
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204201